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140238874 = 278538929
BaseRepresentation
bin10000101101111…
…10000000011010
3100202212212120101
420112332000122
5241400120444
621525450014
73322003456
oct1026760032
9322785511
10140238874
11721855a6
123ab7090a
1323091ca9
14148a7666
15c4a23d4
hex85be01a

140238874 has 8 divisors (see below), whose sum is σ = 210408660. Its totient is φ = 70102656.

The previous prime is 140238859. The next prime is 140238877. The reversal of 140238874 is 478832041.

It can be written as a sum of positive squares in 2 ways, for example, as 93412225 + 46826649 = 9665^2 + 6843^2 .

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

It is not an unprimeable number, because it can be changed into a prime (140238877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11242 + ... + 20170.

Almost surely, 2140238874 is an apocalyptic number.

140238874 is a deficient number, since it is larger than the sum of its proper divisors (70169786).

140238874 is an equidigital number, since it uses as much as digits as its factorization.

140238874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16784.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 140238874 is about 11842.2495329224. The cubic root of 140238874 is about 519.5445642463.

The spelling of 140238874 in words is "one hundred forty million, two hundred thirty-eight thousand, eight hundred seventy-four".

Divisors: 1 2 7853 8929 15706 17858 70119437 140238874