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79946420 = 2257950599
BaseRepresentation
bin1001100001111…
…10001010110100
312120102200212112
410300332022310
5130431241140
611533310152
71660350641
oct460761264
9176380775
1079946420
1141144a24
1222935358
1313741b98
14a890dc8
157042c65
hex4c3e2b4

79946420 has 24 divisors (see below), whose sum is σ = 170016000. Its totient is φ = 31573152.

The previous prime is 79946411. The next prime is 79946429. The reversal of 79946420 is 2464997.

It is an interprime number because it is at equal distance from previous prime (79946411) and next prime (79946429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79946429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23720 + ... + 26879.

It is an arithmetic number, because the mean of its divisors is an integer number (7084000).

Almost surely, 279946420 is an apocalyptic number.

It is an amenable number.

79946420 is an abundant number, since it is smaller than the sum of its proper divisors (90069580).

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

79946420 is a wasteful number, since it uses less digits than its factorization.

79946420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50687 (or 50685 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 79946420 is about 8941.2761952643. The cubic root of 79946420 is about 430.7907210138.

The spelling of 79946420 in words is "seventy-nine million, nine hundred forty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 50599 101198 202396 252995 505990 1011980 3997321 7994642 15989284 19986605 39973210 79946420