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64204828464 = 24371571217107
BaseRepresentation
bin111011110010111001…
…111110111100110000
320010201112201020000210
4323302321332330300
52022442414002324
645254552144120
74432025015550
oct736271767460
9203645636023
1064204828464
1125257a51a07
121053a098040
13609293687a
1431710c5160
151a0b987d29
hexef2e7ef30

64204828464 has 80 divisors (see below), whose sum is σ = 190764639488. Its totient is φ = 18227379456.

The previous prime is 64204828453. The next prime is 64204828511. The reversal of 64204828464 is 46482840246.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555802 + ... + 661305.

Almost surely, 264204828464 is an apocalyptic number.

It is an amenable number.

64204828464 is an abundant number, since it is smaller than the sum of its proper divisors (126559811024).

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

64204828464 is a wasteful number, since it uses less digits than its factorization.

64204828464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217282 (or 1217276 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 48.

The spelling of 64204828464 in words is "sixty-four billion, two hundred four million, eight hundred twenty-eight thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 157 168 314 336 471 628 942 1099 1256 1884 2198 2512 3297 3768 4396 6594 7536 8792 13188 17584 26376 52752 1217107 2434214 3651321 4868428 7302642 8519749 9736856 14605284 17039498 19473712 25559247 29210568 34078996 51118494 58421136 68157992 102236988 136315984 191085799 204473976 382171598 408947952 573257397 764343196 1146514794 1337600593 1528686392 2293029588 2675201186 3057372784 4012801779 4586059176 5350402372 8025603558 9172118352 10700804744 16051207116 21401609488 32102414232 64204828464