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140965023 = 3277169633
BaseRepresentation
bin10000110011011…
…11010010011111
3100211020202122210
420121233102133
5242041340043
621553211503
73331116513
oct1031572237
9324222583
10140965023
1172631121
123b260b93
1323287674
1414a16143
15c597633
hex866f49f

140965023 has 8 divisors (see below), whose sum is σ = 188633008. Its totient is φ = 93636864.

The previous prime is 140965021. The next prime is 140965049. The reversal of 140965023 is 320569041.

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

It is not a de Polignac number, because 140965023 - 21 = 140965021 is a prime.

It is a super-2 number, since 2×1409650232 = 39742275418781058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140965021) 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, 83986 + ... + 85647.

It is an arithmetic number, because the mean of its divisors is an integer number (23579126).

Almost surely, 2140965023 is an apocalyptic number.

140965023 is a deficient number, since it is larger than the sum of its proper divisors (47667985).

140965023 is a wasteful number, since it uses less digits than its factorization.

140965023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169913.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 140965023 is about 11872.8691983025. The cubic root of 140965023 is about 520.4397451291.

The spelling of 140965023 in words is "one hundred forty million, nine hundred sixty-five thousand, twenty-three".

Divisors: 1 3 277 831 169633 508899 46988341 140965023