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80042628 = 22320173307
BaseRepresentation
bin1001100010101…
…01101010000100
312120121120211210
410301111222010
5130442331003
611535331420
71661231301
oct461255204
9176546753
1080042628
1141200236
1222980b70
1313776903
14a8b80a8
157061503
hex4c55a84

80042628 has 24 divisors (see below), whose sum is σ = 186915232. Its totient is φ = 26659584.

The previous prime is 80042623. The next prime is 80042653. The reversal of 80042628 is 82624008.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80042595 and 80042604.

It is not an unprimeable number, because it can be changed into a prime (80042621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22551 + ... + 25857.

Almost surely, 280042628 is an apocalyptic number.

It is an amenable number.

80042628 is an abundant number, since it is smaller than the sum of its proper divisors (106872604).

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

80042628 is a wasteful number, since it uses less digits than its factorization.

80042628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5331 (or 5329 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 80042628 is about 8946.6545702849. The cubic root of 80042628 is about 430.9634571186.

The spelling of 80042628 in words is "eighty million, forty-two thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 2017 3307 4034 6051 6614 8068 9921 12102 13228 19842 24204 39684 6670219 13340438 20010657 26680876 40021314 80042628