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112763161 = 72372412
BaseRepresentation
bin1101011100010…
…10000100011001
321212011221222101
412232022010121
5212331410121
615104523401
72536320400
oct656120431
9255157871
10112763161
11587196a5
1231920561
131a491c84
1410d94637
159d76491
hex6b8a119

112763161 has 27 divisors (see below), whose sum is σ = 138182877. Its totient is φ = 91748160.

The previous prime is 112763149. The next prime is 112763191. The reversal of 112763161 is 161367211.

The square root of 112763161 is 10619.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1334025 + 111429136 = 1155^2 + 10556^2 .

It is not a de Polignac number, because 112763161 - 25 = 112763129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112763111) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2750301 + ... + 2750341.

Almost surely, 2112763161 is an apocalyptic number.

112763161 is the 10619-th square number.

112763161 is the 5310-th centered octagonal number.

It is an amenable number.

112763161 is a deficient number, since it is larger than the sum of its proper divisors (25419716).

112763161 is an frugal number, since it uses more digits than its factorization.

112763161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 85 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The cubic root of 112763161 is about 483.1208127388.

The spelling of 112763161 in words is "one hundred twelve million, seven hundred sixty-three thousand, one hundred sixty-one".

Divisors: 1 7 37 41 49 259 287 1369 1517 1681 1813 2009 9583 10619 11767 56129 62197 67081 74333 82369 392903 435379 2301289 2750321 3047653 16109023 112763161