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79220752 = 2413380869
BaseRepresentation
bin1001011100011…
…01000000010000
312112001211102221
410232031000100
5130240031002
611505550424
71651236202
oct456150020
9175054387
1079220752
11407997a6
1222645414
13135497b0
14a742772
156e4cc37
hex4b8d010

79220752 has 20 divisors (see below), whose sum is σ = 165297580. Its totient is φ = 36563328.

The previous prime is 79220707. The next prime is 79220759. The reversal of 79220752 is 25702297.

It can be written as a sum of positive squares in 2 ways, for example, as 22127616 + 57093136 = 4704^2 + 7556^2 .

It is not an unprimeable number, because it can be changed into a prime (79220759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190227 + ... + 190642.

It is an arithmetic number, because the mean of its divisors is an integer number (8264879).

Almost surely, 279220752 is an apocalyptic number.

It is an amenable number.

79220752 is an abundant number, since it is smaller than the sum of its proper divisors (86076828).

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

79220752 is a wasteful number, since it uses less digits than its factorization.

79220752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380890 (or 380884 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 79220752 is about 8900.6040244469. The cubic root of 79220752 is about 429.4833383564.

The spelling of 79220752 in words is "seventy-nine million, two hundred twenty thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 380869 761738 1523476 3046952 4951297 6093904 9902594 19805188 39610376 79220752