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64198036 = 22721917239
BaseRepresentation
bin1111010011100…
…1010110010100
311110210121011001
43310321112110
5112413314121
610211553044
71406450200
oct364712624
9143717131
1064198036
1133268a31
12195bb784
13103b9a06
148751b00
155981991
hex3d39594

64198036 has 36 divisors (see below), whose sum is σ = 137575200. Its totient is φ = 26063856.

The previous prime is 64198033. The next prime is 64198049. The reversal of 64198036 is 63089146.

It is a junction number, because it is equal to n+sod(n) for n = 64197986 and 64198004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64198031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4896 + ... + 12343.

Almost surely, 264198036 is an apocalyptic number.

It is an amenable number.

64198036 is an abundant number, since it is smaller than the sum of its proper divisors (73377164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64198036 is a wasteful number, since it uses less digits than its factorization.

64198036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17276 (or 17267 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 64198036 is about 8012.3676900152. The cubic root of 64198036 is about 400.4121501847.

The spelling of 64198036 in words is "sixty-four million, one hundred ninety-eight thousand, thirty-six".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 532 931 1862 3724 17239 34478 68956 120673 241346 327541 482692 655082 844711 1310164 1689422 2292787 3378844 4585574 9171148 16049509 32099018 64198036