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78970952 = 2344322283
BaseRepresentation
bin1001011010100…
…00000001001000
312111121010210002
410231100001020
5130204032302
611500342132
71646146004
oct455200110
9174533702
1078970952
1140639055
1222544948
131348cb98
14a6b9704
156dedc02
hex4b50048

78970952 has 16 divisors (see below), whose sum is σ = 148411440. Its totient is φ = 39394576.

The previous prime is 78970949. The next prime is 78970979. The reversal of 78970952 is 25907987.

It is a super-2 number, since 2×789709522 = 12472822519572608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78970897 and 78970906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7598 + ... + 14685.

It is an arithmetic number, because the mean of its divisors is an integer number (9275715).

Almost surely, 278970952 is an apocalyptic number.

It is an amenable number.

78970952 is a deficient number, since it is larger than the sum of its proper divisors (69440488).

78970952 is a wasteful number, since it uses less digits than its factorization.

78970952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22732 (or 22728 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 78970952 is about 8886.5601894096. The cubic root of 78970952 is about 429.0314453978.

The spelling of 78970952 in words is "seventy-eight million, nine hundred seventy thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 443 886 1772 3544 22283 44566 89132 178264 9871369 19742738 39485476 78970952