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61928930 = 257884699
BaseRepresentation
bin1110110000111…
…1010111100010
311022112022112002
43230033113202
5111323211210
610051204002
71351246550
oct354172742
9138468462
1061928930
1131a59138
12188a6602
13caa3c4b
148320bd0
1556844a5
hex3b0f5e2

61928930 has 16 divisors (see below), whose sum is σ = 127396800. Its totient is φ = 21232752.

The previous prime is 61928929. The next prime is 61928957. The reversal of 61928930 is 3982916.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442280 + ... + 442419.

It is an arithmetic number, because the mean of its divisors is an integer number (7962300).

Almost surely, 261928930 is an apocalyptic number.

61928930 is an abundant number, since it is smaller than the sum of its proper divisors (65467870).

61928930 is a wasteful number, since it uses less digits than its factorization.

61928930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884713.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 61928930 is about 7869.4936304695. The cubic root of 61928930 is about 395.6378733851.

The spelling of 61928930 in words is "sixty-one million, nine hundred twenty-eight thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 884699 1769398 4423495 6192893 8846990 12385786 30964465 61928930