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102101312310 = 235411572711951
BaseRepresentation
bin101111100010110110…
…1100110001100110110
3100202112121122001211120
41133011231212030312
53133100413443220
6114523225244410
710243110556314
oct1370555461466
9322477561746
10102101312310
113a334590148
1217955633706
139821c699ca
144d2816d0b4
1529c8960a40
hex17c5b66336

102101312310 has 128 divisors (see below), whose sum is σ = 253680795648. Its totient is φ = 26282880000.

The previous prime is 102101312239. The next prime is 102101312317. The reversal of 102101312310 is 13213101201.

It is a happy number.

It is a super-2 number, since 2×1021013123102 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102101312310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101312317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52331835 + ... + 52333785.

It is an arithmetic number, because the mean of its divisors is an integer number (1981881216).

Almost surely, 2102101312310 is an apocalyptic number.

102101312310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102101312310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126840397824).

102101312310 is an abundant number, since it is smaller than the sum of its proper divisors (151579483338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102101312310 is a wasteful number, since it uses less digits than its factorization.

102101312310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 102101312310 its reverse (13213101201), we get a palindrome (115314413511).

The spelling of 102101312310 in words is "one hundred two billion, one hundred one million, three hundred twelve thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 41 82 123 157 205 246 271 314 410 471 542 615 785 813 942 1230 1355 1570 1626 1951 2355 2710 3902 4065 4710 5853 6437 8130 9755 11111 11706 12874 19311 19510 22222 29265 32185 33333 38622 42547 55555 58530 64370 66666 79991 85094 96555 111110 127641 159982 166665 193110 212735 239973 255282 306307 333330 399955 425470 479946 528721 612614 638205 799910 918921 1057442 1199865 1276410 1531535 1586163 1744427 1837842 2399730 2643605 3063070 3172326 3488854 4594605 5233281 5287210 7930815 8722135 9189210 10466562 12558587 15861630 17444270 21677561 25117174 26166405 37675761 43355122 52332810 62792935 65032683 75351522 83009197 108387805 125585870 130065366 166018394 188378805 216775610 249027591 325163415 376757610 415045985 498055182 650326830 830091970 1245137955 2490275910 3403377077 6806754154 10210131231 17016885385 20420262462 34033770770 51050656155 102101312310