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80440044 = 2236703337
BaseRepresentation
bin1001100101101…
…10101011101100
312121100202222220
410302312223230
5131043040134
611552035340
71664505036
oct462665354
9177322886
1080440044
1141451883
1222b32b50
1313885779
14a97cc56
1570de149
hex4cb6aec

80440044 has 12 divisors (see below), whose sum is σ = 187693464. Its totient is φ = 26813344.

The previous prime is 80440043. The next prime is 80440051. The reversal of 80440044 is 44004408.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 80439996 and 80440023.

It is not an unprimeable number, because it can be changed into a prime (80440043) 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, 3351657 + ... + 3351680.

It is an arithmetic number, because the mean of its divisors is an integer number (15641122).

Almost surely, 280440044 is an apocalyptic number.

It is an amenable number.

80440044 is an abundant number, since it is smaller than the sum of its proper divisors (107253420).

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

80440044 is a wasteful number, since it uses less digits than its factorization.

80440044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703344 (or 6703342 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 80440044 is about 8968.8373828496. The cubic root of 80440044 is about 431.6755322505.

The spelling of 80440044 in words is "eighty million, four hundred forty thousand, forty-four".

Divisors: 1 2 3 4 6 12 6703337 13406674 20110011 26813348 40220022 80440044