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50431386 = 2382910139
BaseRepresentation
bin1100000001100…
…0010110011010
310111220011212010
43000120112122
5100402301021
65000530350
71151442165
oct300302632
9114804763
1050431386
1126515935
1214a809b6
13a5a9875
1469aaadc
154662976
hex301859a

50431386 has 16 divisors (see below), whose sum is σ = 100994400. Its totient is φ = 16788528.

The previous prime is 50431373. The next prime is 50431391. The reversal of 50431386 is 68313405.

It is a super-3 number, since 3×504313863 (a number of 24 digits) contains 333 as substring.

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, 96 + ... + 10043.

It is an arithmetic number, because the mean of its divisors is an integer number (6312150).

Almost surely, 250431386 is an apocalyptic number.

50431386 is an abundant number, since it is smaller than the sum of its proper divisors (50563014).

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

50431386 is a wasteful number, since it uses less digits than its factorization.

50431386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10973.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 50431386 is about 7101.5058966391. The cubic root of 50431386 is about 369.4596104569.

The spelling of 50431386 in words is "fifty million, four hundred thirty-one thousand, three hundred eighty-six".

Divisors: 1 2 3 6 829 1658 2487 4974 10139 20278 30417 60834 8405231 16810462 25215693 50431386