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47540442 = 2366111987
BaseRepresentation
bin1011010101011…
…0100011011010
310022110022020010
42311112203122
544132243232
64414542350
71115041605
oct265264332
9108408203
1047540442
1124920924
1213b079b6
139b06a51
14645733c
1542910cc
hex2d568da

47540442 has 16 divisors (see below), whose sum is σ = 95232672. Its totient is φ = 15821520.

The previous prime is 47540429. The next prime is 47540461. The reversal of 47540442 is 24404574.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028 + ... + 9959.

It is an arithmetic number, because the mean of its divisors is an integer number (5952042).

Almost surely, 247540442 is an apocalyptic number.

47540442 is an abundant number, since it is smaller than the sum of its proper divisors (47692230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47540442 is a wasteful number, since it uses less digits than its factorization.

47540442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12653.

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 47540442 is about 6894.9577228581. The cubic root of 47540442 is about 362.2605746767.

The spelling of 47540442 in words is "forty-seven million, five hundred forty thousand, four hundred forty-two".

Divisors: 1 2 3 6 661 1322 1983 3966 11987 23974 35961 71922 7923407 15846814 23770221 47540442