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80623359 = 3223338447
BaseRepresentation
bin1001100111000…
…11011011111111
312121201002110100
410303203123333
5131114421414
612000012143
71666200345
oct463433377
9177632410
1080623359
1141567583
1223001053
131391b03b
14a9c9995
157128609
hex4ce36ff

80623359 has 12 divisors (see below), whose sum is σ = 116958816. Its totient is φ = 53516832.

The previous prime is 80623357. The next prime is 80623379. The reversal of 80623359 is 95332608.

It is not a de Polignac number, because 80623359 - 21 = 80623357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80623357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17127 + ... + 21320.

It is an arithmetic number, because the mean of its divisors is an integer number (9746568).

Almost surely, 280623359 is an apocalyptic number.

80623359 is a deficient number, since it is larger than the sum of its proper divisors (36335457).

80623359 is a wasteful number, since it uses less digits than its factorization.

80623359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38686 (or 38683 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 80623359 is about 8979.0511191328. The cubic root of 80623359 is about 432.0031989218.

The spelling of 80623359 in words is "eighty million, six hundred twenty-three thousand, three hundred fifty-nine".

Divisors: 1 3 9 233 699 2097 38447 115341 346023 8958151 26874453 80623359