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136885473 = 3248731231
BaseRepresentation
bin10000010100010…
…11010011100001
3100112120111120100
420022023103201
5240020313343
621325533013
73251336004
oct1012132341
9315514510
10136885473
11702a509a
1239a14169
132248982a
141427353b
15c03d9d3
hex828b4e1

136885473 has 12 divisors (see below), whose sum is σ = 198135808. Its totient is φ = 91066680.

The previous prime is 136885453. The next prime is 136885477. The reversal of 136885473 is 374588631.

It is not a de Polignac number, because 136885473 - 26 = 136885409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136885477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11233 + ... + 19998.

Almost surely, 2136885473 is an apocalyptic number.

It is an amenable number.

136885473 is a deficient number, since it is larger than the sum of its proper divisors (61250335).

136885473 is a wasteful number, since it uses less digits than its factorization.

136885473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31724 (or 31721 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 136885473 is about 11699.8065368621. The cubic root of 136885473 is about 515.3699832946.

The spelling of 136885473 in words is "one hundred thirty-six million, eight hundred eighty-five thousand, four hundred seventy-three".

Divisors: 1 3 9 487 1461 4383 31231 93693 281079 15209497 45628491 136885473