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2957293161 = 32181272
BaseRepresentation
bin1011000001000100…
…1011011001101001
321122002200001120100
42300101023121221
522024031340121
61205241020013
7133166401644
oct26021133151
97562601510
102957293161
111288351139
126a6484609
133818b0914
14200a8aa5b
1512495a026
hexb044b669

2957293161 has 9 divisors (see below), whose sum is σ = 4271881341. Its totient is φ = 1971420012.

The previous prime is 2957293147. The next prime is 2957293169. The reversal of 2957293161 is 1613927592.

It is a happy number.

The square root of 2957293161 is 54381.

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

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2957293161 - 27 = 2957293033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2957293169) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 154080 + ... + 172206.

Almost surely, 22957293161 is an apocalyptic number.

2957293161 is the 54381-st square number.

2957293161 is the 27191-st centered octagonal number.

It is an amenable number.

2957293161 is a deficient number, since it is larger than the sum of its proper divisors (1314588180).

2957293161 is an frugal number, since it uses more digits than its factorization.

2957293161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36260 (or 18130 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The cubic root of 2957293161 is about 1435.3730670167.

The spelling of 2957293161 in words is "two billion, nine hundred fifty-seven million, two hundred ninety-three thousand, one hundred sixty-one".

Divisors: 1 3 9 18127 54381 163143 328588129 985764387 2957293161