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50135138 = 253795987
BaseRepresentation
bin1011111101000…
…0000001100010
310111100010110222
42333100001202
5100313311023
64550323042
71146066404
oct277200142
9114303428
1050135138
11263332a9
1214959482
13a504a81
146930b74
154604cc8
hex2fd0062

50135138 has 16 divisors (see below), whose sum is σ = 77604480. Its totient is φ = 24279216.

The previous prime is 50135131. The next prime is 50135143. The reversal of 50135138 is 83153105.

It is not an unprimeable number, because it can be changed into a prime (50135131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5381 + ... + 11367.

It is an arithmetic number, because the mean of its divisors is an integer number (4850280).

Almost surely, 250135138 is an apocalyptic number.

50135138 is a deficient number, since it is larger than the sum of its proper divisors (27469342).

50135138 is a wasteful number, since it uses less digits than its factorization.

50135138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 50135138 is about 7080.6170635051. The cubic root of 50135138 is about 368.7347530611.

The spelling of 50135138 in words is "fifty million, one hundred thirty-five thousand, one hundred thirty-eight".

Divisors: 1 2 53 79 106 158 4187 5987 8374 11974 317311 472973 634622 945946 25067569 50135138