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80920412 = 2220230103
BaseRepresentation
bin1001101001010…
…11111101011100
312122021011221022
410310223331130
5131203423122
612010223312
72001545366
oct464537534
9178234838
1080920412
114174a781
1223124b38
13139c3301
14aa65d36
157186642
hex4d2bf5c

80920412 has 6 divisors (see below), whose sum is σ = 141610728. Its totient is φ = 40460204.

The previous prime is 80920363. The next prime is 80920423. The reversal of 80920412 is 21402908.

It is a super-2 number, since 2×809204122 = 13096226156499488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115048 + ... + 10115055.

It is an arithmetic number, because the mean of its divisors is an integer number (23601788).

Almost surely, 280920412 is an apocalyptic number.

It is an amenable number.

80920412 is a deficient number, since it is larger than the sum of its proper divisors (60690316).

80920412 is a wasteful number, since it uses less digits than its factorization.

80920412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20230107 (or 20230105 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 80920412 is about 8995.5773577909. The cubic root of 80920412 is about 432.5331138400.

The spelling of 80920412 in words is "eighty million, nine hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 20230103 40460206 80920412