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232161994080769 = 152368632
BaseRepresentation
bin110100110010011001101101…
…001100000000001000000001
31010110000110200112121121120211
4310302121231030000020001
5220412220230441041034
62141433425301034121
766621102432334624
oct6462315514001001
91113013615547524
10232161994080769
1167a79392231785
12220566720b5941
139c70a2238314c
1441489b412bdbb
151bc90ed8c6d64
hexd3266d300201

232161994080769 has 3 divisors (see below), whose sum is σ = 232162009317633. Its totient is φ = 232161978843906.

The previous prime is 232161994080739. The next prime is 232161994080799. The reversal of 232161994080769 is 967080499161232.

The square root of 232161994080769 is 15236863.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (232161994080739) and next prime (232161994080799).

It is not a de Polignac number, because 232161994080769 - 27 = 232161994080641 is a prime.

It is a super-2 number, since 2×2321619940807692 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232161994080739) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 7618432 + ... + 22855294.

It is an arithmetic number, because the mean of its divisors is an integer number (77387336439211).

Almost surely, 2232161994080769 is an apocalyptic number.

232161994080769 is the 15236863-rd square number.

232161994080769 is the 7618432-nd centered octagonal number.

It is an amenable number.

232161994080769 is a deficient number, since it is larger than the sum of its proper divisors (15236864).

232161994080769 is an frugal number, since it uses more digits than its factorization.

232161994080769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30473726 (or 15236863 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 67.

The spelling of 232161994080769 in words is "two hundred thirty-two trillion, one hundred sixty-one billion, nine hundred ninety-four million, eighty thousand, seven hundred sixty-nine".

Divisors: 1 15236863 232161994080769