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136861996 = 22108731477
BaseRepresentation
bin10000010100001…
…01100100101100
3100112112022100211
420022011210230
5240014040441
621325232204
73251210365
oct1012054454
9315468324
10136861996
1170289497
1239a02664
132247bc3b
1414268b6c
15c036a81
hex828592c

136861996 has 12 divisors (see below), whose sum is σ = 239736448. Its totient is φ = 68365872.

The previous prime is 136861973. The next prime is 136861999. The reversal of 136861996 is 699168631.

It is not an unprimeable number, because it can be changed into a prime (136861999) 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, 11391 + ... + 20086.

Almost surely, 2136861996 is an apocalyptic number.

It is an amenable number.

136861996 is a deficient number, since it is larger than the sum of its proper divisors (102874452).

136861996 is a wasteful number, since it uses less digits than its factorization.

136861996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32568 (or 32566 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 136861996 is about 11698.8031866512. The cubic root of 136861996 is about 515.3405181936.

The spelling of 136861996 in words is "one hundred thirty-six million, eight hundred sixty-one thousand, nine hundred ninety-six".

Divisors: 1 2 4 1087 2174 4348 31477 62954 125908 34215499 68430998 136861996