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53879230161 = 3685972
BaseRepresentation
bin110010001011011100…
…111100111011010001
312011001221021111000000
4302023130330323101
51340321040331121
640430214520213
73615114620451
oct621334747321
9164057244000
1053879230161
112093946a099
12a538066069
135108657ca3
142871a07d61
151605211526
hexc8b73ced1

53879230161 has 21 divisors (see below), whose sum is σ = 80791288651. Its totient is φ = 35915308632.

The previous prime is 53879230127. The next prime is 53879230213. The reversal of 53879230161 is 16103297835.

The square root of 53879230161 is 232119.

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

53879230161 is a `hidden beast` number, since 538 + 79 + 2 + 30 + 16 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38265228225 + 15614001936 = 195615^2 + 124956^2 .

It is not a de Polignac number, because 53879230161 - 211 = 53879228113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53879230121) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 6262915 + ... + 6271511.

Almost surely, 253879230161 is an apocalyptic number.

53879230161 is the 232119-th square number.

53879230161 is the 116060-th centered octagonal number.

It is an amenable number.

53879230161 is a deficient number, since it is larger than the sum of its proper divisors (26912058490).

53879230161 is an frugal number, since it uses more digits than its factorization.

53879230161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17212 (or 8600 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 53879230161 in words is "fifty-three billion, eight hundred seventy-nine million, two hundred thirty thousand, one hundred sixty-one".

Divisors: 1 3 9 27 81 243 729 8597 25791 77373 232119 696357 2089071 6267213 73908409 221725227 665175681 1995527043 5986581129 17959743387 53879230161