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115231342510020 = 2235111033491689353
BaseRepresentation
bin11010001100110101100011…
…001111001011111111000100
3120010000000020101102001221010
4122030311203033023333010
5110100422242140310040
61045024314205122220
733162122042256162
oct3214654317137704
9503000211361833
10115231342510020
11337973798545a0
1210b10733559370
134c3b365c19ab9
14206532623c232
15d4c671cbce80
hex68cd633cbfc4

115231342510020 has 96 divisors (see below), whose sum is σ = 351982987574400. Its totient is φ = 27934584079360.

The previous prime is 115231342510007. The next prime is 115231342510027. The reversal of 115231342510020 is 20015243132511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 115231342510020.

It is not an unprimeable number, because it can be changed into a prime (115231342510027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67365664 + ... + 69055016.

It is an arithmetic number, because the mean of its divisors is an integer number (3666489453900).

Almost surely, 2115231342510020 is an apocalyptic number.

115231342510020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115231342510020 is an abundant number, since it is smaller than the sum of its proper divisors (236751645064380).

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

115231342510020 is a wasteful number, since it uses less digits than its factorization.

115231342510020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792725 (or 1792723 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 115231342510020 its reverse (20015243132511), we get a palindrome (135246585642531).

The spelling of 115231342510020 in words is "one hundred fifteen trillion, two hundred thirty-one billion, three hundred forty-two million, five hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 103349 206698 310047 413396 516745 620094 1033490 1136839 1240188 1550235 1689353 2066980 2273678 3100470 3378706 3410517 4547356 5068059 5684195 6200940 6757412 6821034 8446765 10136118 11368390 13642068 16893530 17052585 18582883 20272236 22736780 25340295 33787060 34105170 37165766 50680590 55748649 68210340 74331532 92914415 101361180 111497298 185828830 222994596 278743245 371657660 557486490 1114972980 174592943197 349185886394 523778829591 698371772788 872964715985 1047557659182 1745929431970 1920522375167 2095115318364 2618894147955 3491858863940 3841044750334 5237788295910 5761567125501 7682089500668 9602611875835 10475576591820 11523134251002 19205223751670 23046268502004 28807835627505 38410447503340 57615671255010 115231342510020