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13290052 = 223322513
BaseRepresentation
bin110010101100…
…101001000100
3221000012112011
4302230221010
511400240202
61152504004
7220651336
oct62545104
927005464
1013290052
117558016
12454b004
1329a4249
141a9d456
151277bd7
hexcaca44

13290052 has 6 divisors (see below), whose sum is σ = 23257598. Its totient is φ = 6645024.

The previous prime is 13290037. The next prime is 13290061. The reversal of 13290052 is 25009231.

It can be written as a sum of positive squares in only one way, i.e., 12278016 + 1012036 = 3504^2 + 1006^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1661253 + ... + 1661260.

Almost surely, 213290052 is an apocalyptic number.

It is an amenable number.

13290052 is a deficient number, since it is larger than the sum of its proper divisors (9967546).

13290052 is a wasteful number, since it uses less digits than its factorization.

13290052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322517 (or 3322515 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 13290052 is about 3645.5523586968. The cubic root of 13290052 is about 236.8693636965.

Adding to 13290052 its reverse (25009231), we get a palindrome (38299283).

The spelling of 13290052 in words is "thirteen million, two hundred ninety thousand, fifty-two".

Divisors: 1 2 4 3322513 6645026 13290052