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232120116 = 22326447781
BaseRepresentation
bin11011101010111…
…01111100110100
3121011202220221100
431311131330310
5433410320431
635011050100
75515663014
oct1565357464
9534686840
10232120116
1110a031308
12658a0930
13391222a7
1422b83c44
15155a14e6
hexdd5df34

232120116 has 18 divisors (see below), whose sum is σ = 586748162. Its totient is φ = 77373360.

The previous prime is 232120073. The next prime is 232120123. The reversal of 232120116 is 611021232.

It can be written as a sum of positive squares in only one way, i.e., 123876900 + 108243216 = 11130^2 + 10404^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3223855 + ... + 3223926.

Almost surely, 2232120116 is an apocalyptic number.

It is an amenable number.

232120116 is an abundant number, since it is smaller than the sum of its proper divisors (354628046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

232120116 is a wasteful number, since it uses less digits than its factorization.

232120116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447791 (or 6447786 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 232120116 is about 15235.4887023686. The cubic root of 232120116 is about 614.5693912113.

Adding to 232120116 its reverse (611021232), we get a palindrome (843141348).

The spelling of 232120116 in words is "two hundred thirty-two million, one hundred twenty thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 36 6447781 12895562 19343343 25791124 38686686 58030029 77373372 116060058 232120116