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312048408 = 23377126161
BaseRepresentation
bin10010100110010…
…111101100011000
3210202011200221110
4102212113230120
51114341022113
650544140320
710506240060
oct2246275430
9722150843
10312048408
11150163651
12886076a0
134c858b39
142d62c3a0
151c5ddbc3
hex12997b18

312048408 has 64 divisors (see below), whose sum is σ = 904158720. Its totient is φ = 87897600.

The previous prime is 312048391. The next prime is 312048421. The reversal of 312048408 is 804840213.

312048408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1153 + ... + 25008.

It is an arithmetic number, because the mean of its divisors is an integer number (14127480).

Almost surely, 2312048408 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 312048408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452079360).

312048408 is an abundant number, since it is smaller than the sum of its proper divisors (592110312).

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

312048408 is a wasteful number, since it uses less digits than its factorization.

312048408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26248 (or 26244 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 312048408 is about 17664.8919611754. The cubic root of 312048408 is about 678.2773640888.

The spelling of 312048408 in words is "three hundred twelve million, forty-eight thousand, four hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 71 84 142 168 213 284 426 497 568 852 994 1491 1704 1988 2982 3976 5964 11928 26161 52322 78483 104644 156966 183127 209288 313932 366254 549381 627864 732508 1098762 1465016 1857431 2197524 3714862 4395048 5572293 7429724 11144586 13002017 14859448 22289172 26004034 39006051 44578344 52008068 78012102 104016136 156024204 312048408