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64084780 = 22529110491
BaseRepresentation
bin1111010001110…
…1101100101100
311110120211210101
43310131230230
5112401203110
610205320444
71405466044
oct364355454
9143524711
1064084780
11331a0931
1219566124
131037a2b6
148722724
15595d13a
hex3d1db2c

64084780 has 24 divisors (see below), whose sum is σ = 139219920. Its totient is φ = 24749760.

The previous prime is 64084771. The next prime is 64084799. The reversal of 64084780 is 8748046.

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, 54666 + ... + 55825.

It is an arithmetic number, because the mean of its divisors is an integer number (5800830).

Almost surely, 264084780 is an apocalyptic number.

It is an amenable number.

64084780 is an abundant number, since it is smaller than the sum of its proper divisors (75135140).

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

64084780 is a wasteful number, since it uses less digits than its factorization.

64084780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110529 (or 110527 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 64084780 is about 8005.2969963643. The cubic root of 64084780 is about 400.1765470664.

The spelling of 64084780 in words is "sixty-four million, eighty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 110491 220982 441964 552455 1104910 2209820 3204239 6408478 12816956 16021195 32042390 64084780