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13972994 = 27998071
BaseRepresentation
bin110101010011…
…011000000010
3222021220100022
4311103120002
512034113434
61215253442
7226524410
oct65233002
928256308
1013972994
117984132
12481a282
132b83059
141bda2b0
15136022e
hexd53602

13972994 has 8 divisors (see below), whose sum is σ = 23953728. Its totient is φ = 5988420.

The previous prime is 13972969. The next prime is 13973017. The reversal of 13972994 is 49927931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×139729942 = 390489122648072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499022 + ... + 499049.

It is an arithmetic number, because the mean of its divisors is an integer number (2994216).

Almost surely, 213972994 is an apocalyptic number.

13972994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13972994 is a deficient number, since it is larger than the sum of its proper divisors (9980734).

13972994 is an equidigital number, since it uses as much as digits as its factorization.

13972994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998080.

The product of its digits is 122472, while the sum is 44.

The square root of 13972994 is about 3738.0468161862. The cubic root of 13972994 is about 240.8591545159.

The spelling of 13972994 in words is "thirteen million, nine hundred seventy-two thousand, nine hundred ninety-four".

Divisors: 1 2 7 14 998071 1996142 6986497 13972994