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487621904 = 247111572521
BaseRepresentation
bin11101000100001…
…000010100010000
31020222112202111112
4131010020110100
51444312400104
6120215232452
715040501130
oct3504102420
91228482445
10487621904
11230282610
12117378728
137a03cc93
1448a92ac0
152cc2086e
hex1d108510

487621904 has 80 divisors (see below), whose sum is σ = 1185864576. Its totient is φ = 188697600.

The previous prime is 487621903. The next prime is 487621907. The reversal of 487621904 is 409126784.

It is not an unprimeable number, because it can be changed into a prime (487621903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192164 + ... + 194684.

Almost surely, 2487621904 is an apocalyptic number.

487621904 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487621904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592932288).

487621904 is an abundant number, since it is smaller than the sum of its proper divisors (698242672).

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

487621904 is a wasteful number, since it uses less digits than its factorization.

487621904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704 (or 2698 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 487621904 is about 22082.1625752552. The cubic root of 487621904 is about 787.0960543260.

The spelling of 487621904 in words is "four hundred eighty-seven million, six hundred twenty-one thousand, nine hundred four".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 157 176 308 314 616 628 1099 1232 1256 1727 2198 2512 2521 3454 4396 5042 6908 8792 10084 12089 13816 17584 17647 20168 24178 27632 27731 35294 40336 48356 55462 70588 96712 110924 141176 193424 194117 221848 282352 388234 395797 443696 776468 791594 1552936 1583188 2770579 3105872 3166376 4353767 5541158 6332752 8707534 11082316 17415068 22164632 30476369 34830136 44329264 60952738 69660272 121905476 243810952 487621904