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13630370 = 2513104849
BaseRepresentation
bin110011111111…
…101110100010
3221122111100112
4303333232202
511442132440
61204051322
7223566455
oct63775642
927574315
1013630370
11776a776
124693b42
132a93110
141b4b49c
1512e3965
hexcffba2

13630370 has 16 divisors (see below), whose sum is σ = 26422200. Its totient is φ = 5032704.

The previous prime is 13630369. The next prime is 13630403. The reversal of 13630370 is 7303631.

It can be written as a sum of positive squares in 4 ways, for example, as 5202961 + 8427409 = 2281^2 + 2903^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52295 + ... + 52554.

Almost surely, 213630370 is an apocalyptic number.

13630370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13630370 is a deficient number, since it is larger than the sum of its proper divisors (12791830).

13630370 is a wasteful number, since it uses less digits than its factorization.

13630370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104869.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 13630370 is about 3691.9330979854. The cubic root of 13630370 is about 238.8741831782.

The spelling of 13630370 in words is "thirteen million, six hundred thirty thousand, three hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 104849 209698 524245 1048490 1363037 2726074 6815185 13630370