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80904038 = 240452019
BaseRepresentation
bin1001101001001…
…11111101100110
312122020100110212
410310213331212
5131202412123
612010015422
72001446555
oct464477546
9178210425
1080904038
1141739446
1223117572
13139b8a17
14aa5dd9c
157181878
hex4d27f66

80904038 has 4 divisors (see below), whose sum is σ = 121356060. Its totient is φ = 40452018.

The previous prime is 80904011. The next prime is 80904053. The reversal of 80904038 is 83040908.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 80903995 and 80904013.

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, 20226008 + ... + 20226011.

It is an arithmetic number, because the mean of its divisors is an integer number (30339015).

Almost surely, 280904038 is an apocalyptic number.

80904038 is a deficient number, since it is larger than the sum of its proper divisors (40452022).

80904038 is a wasteful number, since it uses less digits than its factorization.

80904038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40452021.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 80904038 is about 8994.6671978456. The cubic root of 80904038 is about 432.5039379507.

The spelling of 80904038 in words is "eighty million, nine hundred four thousand, thirty-eight".

Divisors: 1 2 40452019 80904038