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99512012402513 = 852111678442953
BaseRepresentation
bin10110101000000101110010…
…001001100110111101010001
3111001100020220020120002102222
4112220011302021212331101
5101020401100133340023
6551351104250550425
726650335302043344
oct2650056211467521
9431306806502388
1099512012402513
1129786897801567
12b1b2117738415
13436ac338b2c69
141a8059b11845b
15b7880855bcc8
hex5a8172266f51

99512012402513 has 4 divisors (see below), whose sum is σ = 99523690853988. Its totient is φ = 99500333951040.

The previous prime is 99512012402501. The next prime is 99512012402519. The reversal of 99512012402513 is 31520421021599.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79501885802689 + 20010126599824 = 8916383^2 + 4473268^2 .

It is a cyclic number.

It is not a de Polignac number, because 99512012402513 - 212 = 99512012398417 is a prime.

It is a super-2 number, since 2×995120124025132 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99512012402519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5839212956 + ... + 5839229997.

It is an arithmetic number, because the mean of its divisors is an integer number (24880922713497).

Almost surely, 299512012402513 is an apocalyptic number.

It is an amenable number.

99512012402513 is a deficient number, since it is larger than the sum of its proper divisors (11678451475).

99512012402513 is a wasteful number, since it uses less digits than its factorization.

99512012402513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11678451474.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 99512012402513 in words is "ninety-nine trillion, five hundred twelve billion, twelve million, four hundred two thousand, five hundred thirteen".

Divisors: 1 8521 11678442953 99512012402513