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9957012 = 2231383769
BaseRepresentation
bin100101111110…
…111010010100
3200201212110020
4211332322110
510022111022
6553225140
7150430122
oct45767224
920655406
109957012
11569093a
1234021b0
1320a8130
141472912
15d1a35c
hex97ee94

9957012 has 48 divisors (see below), whose sum is σ = 25354560. Its totient is φ = 3022848.

The previous prime is 9957001. The next prime is 9957029. The reversal of 9957012 is 2107599.

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, 12564 + ... + 13332.

It is an arithmetic number, because the mean of its divisors is an integer number (528220).

Almost surely, 29957012 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 9957012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12677280).

9957012 is an abundant number, since it is smaller than the sum of its proper divisors (15397548).

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

9957012 is a wasteful number, since it uses less digits than its factorization.

9957012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 9957012 is about 3155.4733400870. The cubic root of 9957012 is about 215.1343094459.

The spelling of 9957012 in words is "nine million, nine hundred fifty-seven thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 83 156 166 249 332 498 769 996 1079 1538 2158 2307 3076 3237 4316 4614 6474 9228 9997 12948 19994 29991 39988 59982 63827 119964 127654 191481 255308 382962 765924 829751 1659502 2489253 3319004 4978506 9957012