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99212024102131 = 179554257117889
BaseRepresentation
bin10110100011101110011001…
…011101000011110011110011
3111000021120120112122110120001
4112203232121131003303303
5101000442211132232011
6551001212532330431
726616555305416453
oct2643563135036363
9430246515573501
1099212024102131
1129680646176376
12b163b56173a17
13434886631c705
141a6dc5d77dd63
15b70aebe0e7c1
hex5a3b99743cf3

99212024102131 has 4 divisors (see below), whose sum is σ = 99766281220200. Its totient is φ = 98657766984064.

The previous prime is 99212024102099. The next prime is 99212024102143. The reversal of 99212024102131 is 13120142021299.

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

It is a cyclic number.

It is not a de Polignac number, because 99212024102131 - 25 = 99212024102099 is a prime.

It is a super-2 number, since 2×992120241021312 (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 (99212024142131) 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, 277128558766 + ... + 277128559123.

It is an arithmetic number, because the mean of its divisors is an integer number (24941570305050).

Almost surely, 299212024102131 is an apocalyptic number.

99212024102131 is a deficient number, since it is larger than the sum of its proper divisors (554257118069).

99212024102131 is a wasteful number, since it uses less digits than its factorization.

99212024102131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554257118068.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 99212024102131 in words is "ninety-nine trillion, two hundred twelve billion, twenty-four million, one hundred two thousand, one hundred thirty-one".

Divisors: 1 179 554257117889 99212024102131