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13077252 = 2232363257
BaseRepresentation
bin110001111000…
…101100000100
3220121101121200
4301320230010
511321433002
61144142500
7216104046
oct61705404
926541550
1013077252
117422151
124467a30
13292b426
141a45a96
151234b1c
hexc78b04

13077252 has 18 divisors (see below), whose sum is σ = 33056478. Its totient is φ = 4359072.

The previous prime is 13077227. The next prime is 13077287. The reversal of 13077252 is 25277031.

It can be written as a sum of positive squares in only one way, i.e., 12278016 + 799236 = 3504^2 + 894^2 .

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

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, 181593 + ... + 181664.

It is an arithmetic number, because the mean of its divisors is an integer number (1836471).

Almost surely, 213077252 is an apocalyptic number.

13077252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13077252 is an abundant number, since it is smaller than the sum of its proper divisors (19979226).

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

13077252 is a wasteful number, since it uses less digits than its factorization.

13077252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363267 (or 363262 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 13077252 is about 3616.2483321807. The cubic root of 13077252 is about 235.5983064226.

The spelling of 13077252 in words is "thirteen million, seventy-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 363257 726514 1089771 1453028 2179542 3269313 4359084 6538626 13077252