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136620412 = 22191797637
BaseRepresentation
bin10000010010010…
…10100101111100
3100112002000222021
420021022211330
5234433323122
621320125524
73246153145
oct1011124574
9315060867
10136620412
1170133a35
12399068a4
13223c5ca6
1414204acc
15beda1c7
hex824a97c

136620412 has 12 divisors (see below), whose sum is σ = 251669320. Its totient is φ = 64714896.

The previous prime is 136620389. The next prime is 136620413. The reversal of 136620412 is 214026631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136620413) 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, 898743 + ... + 898894.

Almost surely, 2136620412 is an apocalyptic number.

It is an amenable number.

136620412 is a deficient number, since it is larger than the sum of its proper divisors (115048908).

136620412 is a wasteful number, since it uses less digits than its factorization.

136620412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797660 (or 1797658 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 136620412 is about 11688.4734674807. The cubic root of 136620412 is about 515.0371192650.

The spelling of 136620412 in words is "one hundred thirty-six million, six hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 19 38 76 1797637 3595274 7190548 34155103 68310206 136620412