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64107930 = 23510691999
BaseRepresentation
bin1111010010001…
…1010110011010
311110122000112210
43310203112122
5112402423210
610210015550
71405623405
oct364432632
9143560483
1064107930
1133207267
12195775b6
13103879b3
14872ad3c
155964e20
hex3d2359a

64107930 has 32 divisors (see below), whose sum is σ = 154080000. Its totient is φ = 17070912.

The previous prime is 64107913. The next prime is 64107941. The reversal of 64107930 is 3970146.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31071 + ... + 33069.

It is an arithmetic number, because the mean of its divisors is an integer number (4815000).

Almost surely, 264107930 is an apocalyptic number.

64107930 is an abundant number, since it is smaller than the sum of its proper divisors (89972070).

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

64107930 is a wasteful number, since it uses less digits than its factorization.

64107930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 64107930 is about 8006.7427834295. The cubic root of 64107930 is about 400.2247278865.

The spelling of 64107930 in words is "sixty-four million, one hundred seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1069 1999 2138 3207 3998 5345 5997 6414 9995 10690 11994 16035 19990 29985 32070 59970 2136931 4273862 6410793 10684655 12821586 21369310 32053965 64107930