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64196930 = 2571773739
BaseRepresentation
bin1111010011100…
…1000101000010
311110210112122002
43310321011002
5112413300210
610211544002
71406444030
oct364710502
9143715562
1064196930
1133268116
12195bb002
13103b9365
148751550
1559814a5
hex3d39142

64196930 has 64 divisors (see below), whose sum is σ = 141937920. Its totient is φ = 20404224.

The previous prime is 64196929. The next prime is 64196969. The reversal of 64196930 is 3969146.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86501 + ... + 87239.

It is an arithmetic number, because the mean of its divisors is an integer number (2217780).

Almost surely, 264196930 is an apocalyptic number.

64196930 is an abundant number, since it is smaller than the sum of its proper divisors (77740990).

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

64196930 is a wasteful number, since it uses less digits than its factorization.

64196930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 64196930 is about 8012.2986714176. The cubic root of 64196930 is about 400.4098507458.

The spelling of 64196930 in words is "sixty-four million, one hundred ninety-six thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 17 34 35 70 73 85 119 146 170 238 365 511 595 730 739 1022 1190 1241 1478 2482 2555 3695 5110 5173 6205 7390 8687 10346 12410 12563 17374 25126 25865 43435 51730 53947 62815 86870 87941 107894 125630 175882 269735 377629 439705 539470 755258 879410 917099 1834198 1888145 3776290 4585495 6419693 9170990 12839386 32098465 64196930