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10101269440 = 265171997729
BaseRepresentation
bin10010110100001010…
…10010001111000000
3222001222022122200101
421122011102033000
5131141411110230
64350201132144
7505214242063
oct113205221700
928058278611
1010101269440
1143139a3269
121b5aa8a054
13c4c986a12
146bb7a48da
153e1c13aca
hex25a1523c0

10101269440 has 112 divisors (see below), whose sum is σ = 26809293600. Its totient is φ = 3602644992.

The previous prime is 10101269419. The next prime is 10101269443. The reversal of 10101269440 is 4496210101.

It is a junction number, because it is equal to n+sod(n) for n = 10101269399 and 10101269408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101269443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54496 + ... + 152224.

Almost surely, 210101269440 is an apocalyptic number.

10101269440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10101269440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13404646800).

10101269440 is an abundant number, since it is smaller than the sum of its proper divisors (16708024160).

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

10101269440 is a wasteful number, since it uses less digits than its factorization.

10101269440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97782 (or 97772 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 10101269440 its reverse (4496210101), we get a palindrome (14597479541).

The spelling of 10101269440 in words is "ten billion, one hundred one million, two hundred sixty-nine thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 17 19 20 32 34 38 40 64 68 76 80 85 95 136 152 160 170 190 272 304 320 323 340 380 544 608 646 680 760 1088 1216 1292 1360 1520 1615 2584 2720 3040 3230 5168 5440 6080 6460 10336 12920 20672 25840 51680 97729 103360 195458 390916 488645 781832 977290 1563664 1661393 1856851 1954580 3127328 3322786 3713702 3909160 6254656 6645572 7427404 7818320 8306965 9284255 13291144 14854808 15636640 16613930 18568510 26582288 29709616 31273280 31566467 33227860 37137020 53164576 59419232 63132934 66455720 74274040 106329152 118838464 126265868 132911440 148548080 157832335 252531736 265822880 297096160 315664670 505063472 531645760 594192320 631329340 1010126944 1262658680 2020253888 2525317360 5050634720 10101269440