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64041029620 = 22559281193139
BaseRepresentation
bin111011101001001001…
…001000111111110100
320010022010111101020221
4323221021020333310
52022124000421440
645230421304124
74424665525111
oct735111107764
9203263441227
1064041029620
1125183545467
12104b3265044
136067a15c89
143157447908
1519ec3ced4a
hexee9248ff4

64041029620 has 48 divisors (see below), whose sum is σ = 137253009600. Its totient is φ = 25092488960.

The previous prime is 64041029617. The next prime is 64041029683. The reversal of 64041029620 is 2692014046.

It is a congruent number.

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, 235011 + ... + 428149.

It is an arithmetic number, because the mean of its divisors is an integer number (2859437700).

Almost surely, 264041029620 is an apocalyptic number.

It is an amenable number.

64041029620 is an abundant number, since it is smaller than the sum of its proper divisors (73211979980).

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

64041029620 is a wasteful number, since it uses less digits than its factorization.

64041029620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193488 (or 193486 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 64041029620 in words is "sixty-four billion, forty-one million, twenty-nine thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 59 118 236 281 295 562 590 1124 1180 1405 2810 5620 16579 33158 66316 82895 165790 193139 331580 386278 772556 965695 1931390 3862780 11395201 22790402 45580804 54272059 56976005 108544118 113952010 217088236 227904020 271360295 542720590 1085441180 3202051481 6404102962 12808205924 16010257405 32020514810 64041029620