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50136697 = 1319719577
BaseRepresentation
bin1011111101000…
…0011001111001
310111100012121201
42333100121321
5100313333242
64550334201
71146104062
oct277203171
9114305551
1050136697
1126334496
121495a361
13a5056b0
146931569
1546054b7
hex2fd0679

50136697 has 8 divisors (see below), whose sum is σ = 54270216. Its totient is φ = 46042752.

The previous prime is 50136673. The next prime is 50136719. The reversal of 50136697 is 79663105.

It can be written as a sum of positive squares in 4 ways, for example, as 25644096 + 24492601 = 5064^2 + 4949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50136697 - 215 = 50103929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50136197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7228 + ... + 12349.

It is an arithmetic number, because the mean of its divisors is an integer number (6783777).

Almost surely, 250136697 is an apocalyptic number.

It is an amenable number.

50136697 is a deficient number, since it is larger than the sum of its proper divisors (4133519).

50136697 is a wasteful number, since it uses less digits than its factorization.

50136697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19787.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 50136697 is about 7080.7271519244. The cubic root of 50136697 is about 368.7385750745.

The spelling of 50136697 in words is "fifty million, one hundred thirty-six thousand, six hundred ninety-seven".

Divisors: 1 13 197 2561 19577 254501 3856669 50136697