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80322138 = 23313114419
BaseRepresentation
bin1001100100110…
…01111001011010
312121010210021000
410302121321122
5131030302023
611545325430
71663504221
oct462317132
9177123230
1080322138
1141381236
1222a96876
1313843bc0
14a94bcb8
1570b9243
hex4c99e5a

80322138 has 32 divisors (see below), whose sum is σ = 192225600. Its totient is φ = 24714288.

The previous prime is 80322131. The next prime is 80322163. The reversal of 80322138 is 83122308.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80322131) 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, 56508 + ... + 57911.

It is an arithmetic number, because the mean of its divisors is an integer number (6007050).

Almost surely, 280322138 is an apocalyptic number.

80322138 is an abundant number, since it is smaller than the sum of its proper divisors (111903462).

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

80322138 is a wasteful number, since it uses less digits than its factorization.

80322138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114443 (or 114437 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 80322138 is about 8962.2618796819. The cubic root of 80322138 is about 431.4645178488.

The spelling of 80322138 in words is "eighty million, three hundred twenty-two thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 117 234 351 702 114419 228838 343257 686514 1029771 1487447 2059542 2974894 3089313 4462341 6178626 8924682 13387023 26774046 40161069 80322138