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75111311311157 = 118099978465819
BaseRepresentation
bin10001000101000000110111…
…000001111000000100110101
3100211221120102102121101022202
4101011000313001320010311
534321110431143424112
6423425354323434245
721551420212646222
oct2105006701700465
9324846372541282
1075111311311157
1121a2958a0a6220
1285110aa225985
1332bac73b63414
14147959a618949
158a3c3e4d66c2
hex445037078135

75111311311157 has 16 divisors (see below), whose sum is σ = 82123194859200. Its totient is φ = 68130194202240.

The previous prime is 75111311311129. The next prime is 75111311311193.

75111311311157 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75111311311157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75111311311157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75111311301157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4639394 + ... + 13105212.

It is an arithmetic number, because the mean of its divisors is an integer number (5132699678700).

Almost surely, 275111311311157 is an apocalyptic number.

It is an amenable number.

75111311311157 is a deficient number, since it is larger than the sum of its proper divisors (7011883548043).

75111311311157 is a wasteful number, since it uses less digits than its factorization.

75111311311157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467636.

The product of its digits is 11025, while the sum is 38.

It can be divided in two parts, 7511131 and 1311157, that added together give a palindrome (8822288).

The spelling of 75111311311157 in words is "seventy-five trillion, one hundred eleven billion, three hundred eleven million, three hundred eleven thousand, one hundred fifty-seven".

Divisors: 1 11 809 997 8899 10967 806573 8465819 8872303 93124009 6848847571 8440421543 75337323281 92844636973 6828301028287 75111311311157