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80472748 = 2228371089
BaseRepresentation
bin1001100101111…
…10101010101100
312121102102212011
410302332222230
5131100111443
611552451004
71665002266
oct462765254
9177372764
1080472748
1141474404
1222b49a64
1313897615
14a98ab36
1570e8b9d
hex4cbeaac

80472748 has 12 divisors (see below), whose sum is σ = 141326920. Its totient is φ = 40093632.

The previous prime is 80472739. The next prime is 80472761. The reversal of 80472748 is 84727408.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 80472748.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34413 + ... + 36676.

Almost surely, 280472748 is an apocalyptic number.

It is an amenable number.

80472748 is a deficient number, since it is larger than the sum of its proper divisors (60854172).

80472748 is a wasteful number, since it uses less digits than its factorization.

80472748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71376 (or 71374 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 80472748 is about 8970.6603993240. The cubic root of 80472748 is about 431.7340255213.

The spelling of 80472748 in words is "eighty million, four hundred seventy-two thousand, seven hundred forty-eight".

Divisors: 1 2 4 283 566 1132 71089 142178 284356 20118187 40236374 80472748