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13752634 = 272140333
BaseRepresentation
bin110100011101…
…100100111010
3221212201001211
4310131210322
512010041014
61210433334
7224616100
oct64354472
927781054
1013752634
117843615
12473284a
132b0696c
141b7dc70
151319cc4
hexd1d93a

13752634 has 12 divisors (see below), whose sum is σ = 23997114. Its totient is φ = 5893944.

The previous prime is 13752631. The next prime is 13752649. The reversal of 13752634 is 43625731.

It can be written as a sum of positive squares in only one way, i.e., 13505625 + 247009 = 3675^2 + 497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13752596 and 13752605.

It is not an unprimeable number, because it can be changed into a prime (13752631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70069 + ... + 70264.

Almost surely, 213752634 is an apocalyptic number.

13752634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13752634 is a deficient number, since it is larger than the sum of its proper divisors (10244480).

13752634 is a wasteful number, since it uses less digits than its factorization.

13752634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140349 (or 140342 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 13752634 is about 3708.4543950277. The cubic root of 13752634 is about 239.5862895733.

The spelling of 13752634 in words is "thirteen million, seven hundred fifty-two thousand, six hundred thirty-four".

Divisors: 1 2 7 14 49 98 140333 280666 982331 1964662 6876317 13752634