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13542472 = 231799577
BaseRepresentation
bin110011101010…
…010001001000
3221111000210001
4303222101020
511431324342
61202132344
7223052266
oct63522110
927430701
1013542472
11770a729
1246510b4
132a620c8
141b27436
1512c78b7
hexcea448

13542472 has 16 divisors (see below), whose sum is σ = 26886060. Its totient is φ = 6372864.

The previous prime is 13542467. The next prime is 13542479. The reversal of 13542472 is 27424531.

It can be written as a sum of positive squares in 2 ways, for example, as 12068676 + 1473796 = 3474^2 + 1214^2 .

It is a super-4 number, since 4×135424724 (a number of 30 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13542472.

It is not an unprimeable number, because it can be changed into a prime (13542479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49653 + ... + 49924.

Almost surely, 213542472 is an apocalyptic number.

It is an amenable number.

13542472 is a deficient number, since it is larger than the sum of its proper divisors (13343588).

13542472 is a wasteful number, since it uses less digits than its factorization.

13542472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99600 (or 99596 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 13542472 is about 3680.0097825957. The cubic root of 13542472 is about 238.3596004542.

The spelling of 13542472 in words is "thirteen million, five hundred forty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 17 34 68 136 99577 199154 398308 796616 1692809 3385618 6771236 13542472