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13992970 = 252383733
BaseRepresentation
bin110101011000…
…010000001010
3222022220202011
4311120100022
512040233340
61215530134
7226636555
oct65302012
928286664
1013992970
117998142
12482994a
132b8c184
141c0369c
1513660ea
hexd5840a

13992970 has 32 divisors (see below), whose sum is σ = 26635392. Its totient is φ = 5282112.

The previous prime is 13992959. The next prime is 13992977. The reversal of 13992970 is 7929931.

It is not an unprimeable number, because it can be changed into a prime (13992977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18724 + ... + 19456.

It is an arithmetic number, because the mean of its divisors is an integer number (832356).

Almost surely, 213992970 is an apocalyptic number.

13992970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13992970 is a deficient number, since it is larger than the sum of its proper divisors (12642422).

13992970 is a wasteful number, since it uses less digits than its factorization.

13992970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 13992970 is about 3740.7178455478. The cubic root of 13992970 is about 240.9738784725.

The spelling of 13992970 in words is "thirteen million, nine hundred ninety-two thousand, nine hundred seventy".

Divisors: 1 2 5 10 23 46 83 115 166 230 415 733 830 1466 1909 3665 3818 7330 9545 16859 19090 33718 60839 84295 121678 168590 304195 608390 1399297 2798594 6996485 13992970