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475905312 = 253219292999
BaseRepresentation
bin11100010111011…
…011110100100000
31020011111111100200
4130113123310200
51433312432222
6115120145200
714536062021
oct3427336440
91204444320
10475905312
112246aa783
12113468200
1377799c9c
14472c2c48
152bba8eac
hex1c5dbd20

475905312 has 144 divisors (see below), whose sum is σ = 1474200000. Its totient is φ = 145055232.

The previous prime is 475905299. The next prime is 475905319. The reversal of 475905312 is 213509574.

475905312 is a `hidden beast` number, since 4 + 7 + 590 + 53 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (475905319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157189 + ... + 160187.

It is an arithmetic number, because the mean of its divisors is an integer number (10237500).

Almost surely, 2475905312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475905312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737100000).

475905312 is an abundant number, since it is smaller than the sum of its proper divisors (998294688).

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

475905312 is a wasteful number, since it uses less digits than its factorization.

475905312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063 (or 3052 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 475905312 is about 21815.2541126616. The cubic root of 475905312 is about 780.7407558572.

The spelling of 475905312 in words is "four hundred seventy-five million, nine hundred five thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 29 32 36 38 48 57 58 72 76 87 96 114 116 144 152 171 174 228 232 261 288 304 342 348 456 464 522 551 608 684 696 912 928 1044 1102 1368 1392 1653 1824 2088 2204 2736 2784 2999 3306 4176 4408 4959 5472 5998 6612 8352 8816 8997 9918 11996 13224 17632 17994 19836 23992 26448 26991 35988 39672 47984 52896 53982 56981 71976 79344 86971 95968 107964 113962 143952 158688 170943 173942 215928 227924 260913 287904 341886 347884 431856 455848 512829 521826 683772 695768 782739 863712 911696 1025658 1043652 1367544 1391536 1565478 1652449 1823392 2051316 2087304 2735088 2783072 3130956 3304898 4102632 4174608 4957347 5470176 6261912 6609796 8205264 8349216 9914694 12523824 13219592 14872041 16410528 19829388 25047648 26439184 29744082 39658776 52878368 59488164 79317552 118976328 158635104 237952656 475905312