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80503907 = 1159163761
BaseRepresentation
bin1001100110001…
…10010001100011
312121111000121012
410303012101203
5131102111112
611553251135
71665162161
oct463062143
9177430535
1080503907
1141495860
1222b63aab
13138a8863
14a998231
157103022
hex4cc6463

80503907 has 16 divisors (see below), whose sum is σ = 89976960. Its totient is φ = 71409600.

The previous prime is 80503861. The next prime is 80503921. The reversal of 80503907 is 70930508.

It is a cyclic number.

It is not a de Polignac number, because 80503907 - 210 = 80502883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80503937) 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, 105407 + ... + 106167.

It is an arithmetic number, because the mean of its divisors is an integer number (5623560).

Almost surely, 280503907 is an apocalyptic number.

80503907 is a deficient number, since it is larger than the sum of its proper divisors (9473053).

80503907 is a wasteful number, since it uses less digits than its factorization.

80503907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 80503907 is about 8972.3969484191. The cubic root of 80503907 is about 431.7897407166.

The spelling of 80503907 in words is "eighty million, five hundred three thousand, nine hundred seven".

Divisors: 1 11 59 163 649 761 1793 8371 9617 44899 105787 124043 493889 1364473 7318537 80503907