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50275290 = 23513177583
BaseRepresentation
bin1011111111001…
…0001111011010
310111121020201210
42333302033122
5100332302130
64553323550
71150222122
oct277621732
9114536653
1050275290
112641962a
1214a065b6
13a5537c0
146969c82
1546315b0
hex2ff23da

50275290 has 64 divisors (see below), whose sum is σ = 137604096. Its totient is φ = 11645952.

The previous prime is 50275237. The next prime is 50275321. The reversal of 50275290 is 9257205.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2839 + ... + 10421.

It is an arithmetic number, because the mean of its divisors is an integer number (2150064).

Almost surely, 250275290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50275290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68802048).

50275290 is an abundant number, since it is smaller than the sum of its proper divisors (87328806).

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

50275290 is a wasteful number, since it uses less digits than its factorization.

50275290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7623.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 50275290 is about 7090.5070340562. The cubic root of 50275290 is about 369.0780308096.

The spelling of 50275290 in words is "fifty million, two hundred seventy-five thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 17 26 30 34 39 51 65 78 85 102 130 170 195 221 255 390 442 510 663 1105 1326 2210 3315 6630 7583 15166 22749 37915 45498 75830 98579 113745 128911 197158 227490 257822 295737 386733 492895 591474 644555 773466 985790 1289110 1478685 1675843 1933665 2957370 3351686 3867330 5027529 8379215 10055058 16758430 25137645 50275290