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49840693 = 721017157
BaseRepresentation
bin1011111000100…
…0001000110101
310110210011120121
42332020020311
5100224400233
64540131541
71143432100
oct276101065
9113704517
1049840693
1126152061
1214836bb1
13a430a46
146895737
15459792d
hex2f88235

49840693 has 6 divisors (see below), whose sum is σ = 57978006. Its totient is φ = 42720552.

The previous prime is 49840669. The next prime is 49840699. The reversal of 49840693 is 39604894.

It can be written as a sum of positive squares in only one way, i.e., 45252529 + 4588164 = 6727^2 + 2142^2 .

It is not a de Polignac number, because 49840693 - 225 = 16286261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49840699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 508530 + ... + 508627.

It is an arithmetic number, because the mean of its divisors is an integer number (9663001).

Almost surely, 249840693 is an apocalyptic number.

It is an amenable number.

49840693 is a deficient number, since it is larger than the sum of its proper divisors (8137313).

49840693 is a wasteful number, since it uses less digits than its factorization.

49840693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017171 (or 1017164 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 49840693 is about 7059.7941188111. The cubic root of 49840693 is about 368.0114722518.

The spelling of 49840693 in words is "forty-nine million, eight hundred forty thousand, six hundred ninety-three".

Divisors: 1 7 49 1017157 7120099 49840693