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80630474 = 2374797239
BaseRepresentation
bin1001100111001…
…01001011001010
312121201110012212
410303211023022
5131120133344
612000105122
71666230161
oct463451312
9177643185
1080630474
1141571961
12230051a2
1313921352
14a9cc3d8
15712a79e
hex4ce52ca

80630474 has 32 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 37836288.

The previous prime is 80630467. The next prime is 80630483. The reversal of 80630474 is 47403608.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80630474.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 337247 + ... + 337485.

It is an arithmetic number, because the mean of its divisors is an integer number (4021920).

Almost surely, 280630474 is an apocalyptic number.

80630474 is a deficient number, since it is larger than the sum of its proper divisors (48070966).

80630474 is a wasteful number, since it uses less digits than its factorization.

80630474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 80630474 is about 8979.4473103861. The cubic root of 80630474 is about 432.0159066217.

The spelling of 80630474 in words is "eighty million, six hundred thirty thousand, four hundred seventy-four".

Divisors: 1 2 37 47 74 94 97 194 239 478 1739 3478 3589 4559 7178 8843 9118 11233 17686 22466 23183 46366 168683 337366 415621 831242 857771 1089601 1715542 2179202 40315237 80630474