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12152140991 = 173740148179
BaseRepresentation
bin10110101000101001…
…01111010010111111
31011100220101201112222
423110110233102333
5144341422002431
65325502315555
7610066331324
oct132424572277
934326351488
1012152140991
115176626431
122431888bbb
1311b8833093
14833d02b4b
154b1cc457b
hex2d452f4bf

12152140991 has 16 divisors (see below), whose sum is σ = 13247958240. Its totient is φ = 11100211200.

The previous prime is 12152140967. The next prime is 12152140997. The reversal of 12152140991 is 19904125121.

It is a de Polignac number, because none of the positive numbers 2k-12152140991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152140997) 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, 228140 + ... + 276318.

It is an arithmetic number, because the mean of its divisors is an integer number (827997390).

Almost surely, 212152140991 is an apocalyptic number.

12152140991 is a deficient number, since it is larger than the sum of its proper divisors (1095817249).

12152140991 is a wasteful number, since it uses less digits than its factorization.

12152140991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48634.

The product of its (nonzero) digits is 6480, while the sum is 35.

The spelling of 12152140991 in words is "twelve billion, one hundred fifty-two million, one hundred forty thousand, nine hundred ninety-one".

Divisors: 1 17 37 401 629 6817 14837 48179 252229 819043 1782623 19319779 30304591 328436243 714831823 12152140991