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7990956 = 2232673313
BaseRepresentation
bin11110011110111010101100
3120000222112100
4132132322230
54021202311
6443135100
7124631151
oct36367254
916028470
107990956
1145687a6
122814490
13186a29c
1410c0228
15a7ca56
hex79eeac

7990956 has 36 divisors (see below), whose sum is σ = 20507032. Its totient is φ = 2623104.

The previous prime is 7990951. The next prime is 7990993. The reversal of 7990956 is 6590997.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (7990951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 756 + ... + 4068.

Almost surely, 27990956 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 7990956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10253516).

7990956 is an abundant number, since it is smaller than the sum of its proper divisors (12516076).

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

7990956 is a wasteful number, since it uses less digits than its factorization.

7990956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390 (or 3385 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 7990956 is about 2826.8279042064. The cubic root of 7990956 is about 199.9246049148.

The spelling of 7990956 in words is "seven million, nine hundred ninety thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 67 134 201 268 402 603 804 1206 2412 3313 6626 9939 13252 19878 29817 39756 59634 119268 221971 443942 665913 887884 1331826 1997739 2663652 3995478 7990956