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80674944 = 273730013
BaseRepresentation
bin1001100111100…
…00000010000000
312121210201012220
410303300002000
5131123044234
612001051040
71666503630
oct463600200
9177721186
1080674944
11415a2309
1223026a80
131393866c
14aa006c0
157138a49
hex4cf0080

80674944 has 64 divisors (see below), whose sum is σ = 244914240. Its totient is φ = 23049216.

The previous prime is 80674943. The next prime is 80674949. The reversal of 80674944 is 44947608.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 80674896 and 80674905.

It is not an unprimeable number, because it can be changed into a prime (80674943) 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, 12319 + ... + 17694.

It is an arithmetic number, because the mean of its divisors is an integer number (3826785).

Almost surely, 280674944 is an apocalyptic number.

80674944 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80674944 is an abundant number, since it is smaller than the sum of its proper divisors (164239296).

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

80674944 is a wasteful number, since it uses less digits than its factorization.

80674944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30037 (or 30025 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 80674944 is about 8981.9231793642. The cubic root of 80674944 is about 432.0953150453.

It can be divided in two parts, 80674 and 944, that added together give a palindrome (81618).

The spelling of 80674944 in words is "eighty million, six hundred seventy-four thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 336 384 448 672 896 1344 2688 30013 60026 90039 120052 180078 210091 240104 360156 420182 480208 630273 720312 840364 960416 1260546 1440624 1680728 1920832 2521092 2881248 3361456 3841664 5042184 5762496 6722912 10084368 11524992 13445824 20168736 26891648 40337472 80674944