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140974458 = 2388726489
BaseRepresentation
bin10000110011100…
…01100101111010
3100211021020121020
420121301211322
5242042140313
621553323310
73331156152
oct1031614572
9324236536
10140974458
1172638219
123b266536
132328ba51
1414a19762
15c59a323
hex867197a

140974458 has 16 divisors (see below), whose sum is σ = 282277440. Its totient is φ = 46936736.

The previous prime is 140974451. The next prime is 140974459. The reversal of 140974458 is 854479041.

140974458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140974451) 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, 7923 + ... + 18566.

It is an arithmetic number, because the mean of its divisors is an integer number (17642340).

Almost surely, 2140974458 is an apocalyptic number.

140974458 is an abundant number, since it is smaller than the sum of its proper divisors (141302982).

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

140974458 is a wasteful number, since it uses less digits than its factorization.

140974458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27381.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 140974458 is about 11873.2665261081. The cubic root of 140974458 is about 520.4513561405.

The spelling of 140974458 in words is "one hundred forty million, nine hundred seventy-four thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 887 1774 2661 5322 26489 52978 79467 158934 23495743 46991486 70487229 140974458