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80116631 = 7175911411
BaseRepresentation
bin1001100011001…
…11101110010111
312120202100100122
410301213232113
5131002213011
611541102155
71661660120
oct461475627
9176670318
1080116631
11412508a1
12229b795b
13137a14ba
14a8d7047
1570783db
hex4c67b97

80116631 has 16 divisors (see below), whose sum is σ = 98599680. Its totient is φ = 63530880.

The previous prime is 80116609. The next prime is 80116633. The reversal of 80116631 is 13661108.

It is not a de Polignac number, because 80116631 - 214 = 80100247 is a prime.

It is a super-2 number, since 2×801166312 = 12837349125580322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80116631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80116633) 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, 1316 + ... + 12726.

It is an arithmetic number, because the mean of its divisors is an integer number (6162480).

Almost surely, 280116631 is an apocalyptic number.

80116631 is a deficient number, since it is larger than the sum of its proper divisors (18483049).

80116631 is a wasteful number, since it uses less digits than its factorization.

80116631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11494.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 80116631 is about 8950.7894065272. The cubic root of 80116631 is about 431.0962312243.

Adding to 80116631 its reverse (13661108), we get a palindrome (93777739).

The spelling of 80116631 in words is "eighty million, one hundred sixteen thousand, six hundred thirty-one".

Divisors: 1 7 17 59 119 413 1003 7021 11411 79877 193987 673249 1357909 4712743 11445233 80116631