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103011332312 = 237417315467
BaseRepresentation
bin101111111101111110…
…1000011000011011000
3100211220000222212121002
41133323331003003120
53141431400113222
6115153414204132
710304500610000
oct1377375030330
9324800885532
10103011332312
113a761236699
1217b6a353648
139938661095
144db2d77000
152a2d7bb392
hex17fbf430d8

103011332312 has 80 divisors (see below), whose sum is σ = 238578984360. Its totient is φ = 41550657792.

The previous prime is 103011332201. The next prime is 103011332351. The reversal of 103011332312 is 213233110301.

It is a super-2 number, since 2×1030113323122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 168803 + ... + 484269.

Almost surely, 2103011332312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103011332312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119289492180).

103011332312 is an abundant number, since it is smaller than the sum of its proper divisors (135567652048).

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

103011332312 is an equidigital number, since it uses as much as digits as its factorization.

103011332312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315518 (or 315493 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 103011332312 its reverse (213233110301), we get a palindrome (316244442613).

The spelling of 103011332312 in words is "one hundred three billion, eleven million, three hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 17 28 34 49 56 68 98 119 136 196 238 343 392 476 686 833 952 1372 1666 2401 2744 3332 4802 5831 6664 9604 11662 19208 23324 40817 46648 81634 163268 315467 326536 630934 1261868 2208269 2523736 4416538 5362939 8833076 10725878 15457883 17666152 21451756 30915766 37540573 42903512 61831532 75081146 108205181 123663064 150162292 216410362 262784011 300324584 432820724 525568022 757436267 865641448 1051136044 1514872534 1839488077 2102272088 3029745068 3678976154 6059490136 7357952308 12876416539 14715904616 25752833078 51505666156 103011332312