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80456412 = 22319595981
BaseRepresentation
bin1001100101110…
…10101011011100
312121101121110010
410302322223130
5131044101122
611552243220
71664603541
oct462725334
9177347403
1080456412
1141463103
1222b40510
131389005a
14a984bc8
1570e3e0c
hex4cbaadc

80456412 has 48 divisors (see below), whose sum is σ = 200995200. Its totient is φ = 24972480.

The previous prime is 80456407. The next prime is 80456413. The reversal of 80456412 is 21465408.

It is a self number, because there is not a number n which added to its sum of digits gives 80456412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80456413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10462 + ... + 16442.

It is an arithmetic number, because the mean of its divisors is an integer number (4187400).

Almost surely, 280456412 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 80456412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100497600).

80456412 is an abundant number, since it is smaller than the sum of its proper divisors (120538788).

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

80456412 is a wasteful number, since it uses less digits than its factorization.

80456412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6066 (or 6064 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 80456412 is about 8969.7498292873. The cubic root of 80456412 is about 431.7048094843.

The spelling of 80456412 in words is "eighty million, four hundred fifty-six thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 59 76 114 118 177 228 236 354 708 1121 2242 3363 4484 5981 6726 11962 13452 17943 23924 35886 71772 113639 227278 340917 352879 454556 681834 705758 1058637 1363668 1411516 2117274 4234548 6704701 13409402 20114103 26818804 40228206 80456412