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79420192 = 2517672179
BaseRepresentation
bin1001011101111…
…01101100100000
312112102222000121
410232331230200
5130312421232
611514130024
71653026515
oct456755440
9175388017
1079420192
1140915625
1222720914
13135b94c7
14a79530c
156e8bd97
hex4bbdb20

79420192 has 48 divisors (see below), whose sum is σ = 168104160. Its totient is φ = 36799488.

The previous prime is 79420181. The next prime is 79420199. The reversal of 79420192 is 29102497.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (79420199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35359 + ... + 37537.

It is an arithmetic number, because the mean of its divisors is an integer number (3502170).

Almost surely, 279420192 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 79420192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84052080).

79420192 is an abundant number, since it is smaller than the sum of its proper divisors (88683968).

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

79420192 is a wasteful number, since it uses less digits than its factorization.

79420192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 79420192 is about 8911.8007159047. The cubic root of 79420192 is about 429.8434476071.

The spelling of 79420192 in words is "seventy-nine million, four hundred twenty thousand, one hundred ninety-two".

Divisors: 1 2 4 8 16 17 32 34 67 68 134 136 268 272 536 544 1072 1139 2144 2179 2278 4358 4556 8716 9112 17432 18224 34864 36448 37043 69728 74086 145993 148172 291986 296344 583972 592688 1167944 1185376 2335888 2481881 4671776 4963762 9927524 19855048 39710096 79420192