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50793990 = 23513130241
BaseRepresentation
bin1100000111000…
…0111000000110
310112120121020220
43001300320012
5101000401430
65012405210
71154512302
oct301607006
9115517226
1050793990
1126743305
1215016806
13a6a5920
146a62d02
1546d5110
hex3070e06

50793990 has 32 divisors (see below), whose sum is σ = 131283936. Its totient is φ = 12503040.

The previous prime is 50793989. The next prime is 50793997. The reversal of 50793990 is 9939705.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50793997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64731 + ... + 65510.

It is an arithmetic number, because the mean of its divisors is an integer number (4102623).

Almost surely, 250793990 is an apocalyptic number.

50793990 is an abundant number, since it is smaller than the sum of its proper divisors (80489946).

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

50793990 is a wasteful number, since it uses less digits than its factorization.

50793990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130264.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 50793990 is about 7126.9902483447. The cubic root of 50793990 is about 370.3429739204.

The spelling of 50793990 in words is "fifty million, seven hundred ninety-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 130241 260482 390723 651205 781446 1302410 1693133 1953615 3386266 3907230 5079399 8465665 10158798 16931330 25396995 50793990