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80047629 = 332964727
BaseRepresentation
bin1001100010101…
…10111000001101
312120121211201000
410301112320031
5130443011004
611535410513
71661252004
oct461267015
9176554630
1080047629
1141203a72
1222983a39
1313778c7c
14a8b9c3b
157062c39
hex4c56e0d

80047629 has 8 divisors (see below), whose sum is σ = 118589120. Its totient is φ = 53365068.

The previous prime is 80047603. The next prime is 80047631. The reversal of 80047629 is 92674008.

It is not a de Polignac number, because 80047629 - 212 = 80043533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80047593 and 80047602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80040629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482337 + ... + 1482390.

It is an arithmetic number, because the mean of its divisors is an integer number (14823640).

Almost surely, 280047629 is an apocalyptic number.

It is an amenable number.

80047629 is a deficient number, since it is larger than the sum of its proper divisors (38541491).

80047629 is a wasteful number, since it uses less digits than its factorization.

80047629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964736 (or 2964730 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 80047629 is about 8946.9340558652. The cubic root of 80047629 is about 430.9724323501.

The spelling of 80047629 in words is "eighty million, forty-seven thousand, six hundred twenty-nine".

Divisors: 1 3 9 27 2964727 8894181 26682543 80047629