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427904542 = 21321417687
BaseRepresentation
bin11001100000010…
…100111000011110
31002211011210200101
4121200110320132
51334020421132
6110243251314
713414062052
oct3140247036
91084153611
10427904542
111aa5a501a
12bb379b3a
136a861870
1440b89c62
15278767e7
hex19814e1e

427904542 has 16 divisors (see below), whose sum is σ = 691643232. Its totient is φ = 197376480.

The previous prime is 427904537. The next prime is 427904597. The reversal of 427904542 is 245409724.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 51823 + ... + 59509.

It is an arithmetic number, because the mean of its divisors is an integer number (43227702).

Almost surely, 2427904542 is an apocalyptic number.

427904542 is a deficient number, since it is larger than the sum of its proper divisors (263738690).

427904542 is a wasteful number, since it uses less digits than its factorization.

427904542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9843.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 427904542 is about 20685.8536686306. The cubic root of 427904542 is about 753.5561734493.

The spelling of 427904542 in words is "four hundred twenty-seven million, nine hundred four thousand, five hundred forty-two".

Divisors: 1 2 13 26 2141 4282 7687 15374 27833 55666 99931 199862 16457867 32915734 213952271 427904542