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113105242540 = 22553257415187
BaseRepresentation
bin110100101010110011…
…0010000100110101100
3101210221111110122100001
41221111212100212230
53323114420230130
6123543153514044
711112565461463
oct1512546204654
9353844418301
10113105242540
1143a70a62864
1219b06872924
13a88693c224
14568d7839da
152e1ea296ca
hex1a559909ac

113105242540 has 48 divisors (see below), whose sum is σ = 242944767072. Its totient is φ = 44215648256.

The previous prime is 113105242441. The next prime is 113105242577. The reversal of 113105242540 is 45242501311.

It is a junction number, because it is equal to n+sod(n) for n = 113105242499 and 113105242508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64827 + ... + 480013.

It is an arithmetic number, because the mean of its divisors is an integer number (5061349314).

Almost surely, 2113105242540 is an apocalyptic number.

113105242540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113105242540 is an abundant number, since it is smaller than the sum of its proper divisors (129839524532).

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

113105242540 is a wasteful number, since it uses less digits than its factorization.

113105242540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415506 (or 415504 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 113105242540 its reverse (45242501311), we get a palindrome (158347743851).

The spelling of 113105242540 in words is "one hundred thirteen billion, one hundred five million, two hundred forty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 53 106 212 257 265 514 530 1028 1060 1285 2570 5140 13621 27242 54484 68105 136210 272420 415187 830374 1660748 2075935 4151870 8303740 22004911 44009822 88019644 106703059 110024555 213406118 220049110 426812236 440098220 533515295 1067030590 2134061180 5655262127 11310524254 22621048508 28276310635 56552621270 113105242540