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140492051 = 743466751
BaseRepresentation
bin10000101111110…
…11110100010011
3100210100201212022
420113323310103
5241431221201
621535122055
73324106550
oct1027736423
9323321768
10140492051
1172338837
123b07332b
13231502bb
1414931a27
15c50241b
hex85fbd13

140492051 has 8 divisors (see below), whose sum is σ = 164296704. Its totient is φ = 117621000.

The previous prime is 140492021. The next prime is 140492057. The reversal of 140492051 is 150294041.

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

It is not a de Polignac number, because 140492051 - 218 = 140229907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140492051.

It is not an unprimeable number, because it can be changed into a prime (140492057) 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, 233075 + ... + 233676.

It is an arithmetic number, because the mean of its divisors is an integer number (20537088).

Almost surely, 2140492051 is an apocalyptic number.

140492051 is a deficient number, since it is larger than the sum of its proper divisors (23804653).

140492051 is an equidigital number, since it uses as much as digits as its factorization.

140492051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466801.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 140492051 is about 11852.9342780596. The cubic root of 140492051 is about 519.8570255349.

The spelling of 140492051 in words is "one hundred forty million, four hundred ninety-two thousand, fifty-one".

Divisors: 1 7 43 301 466751 3267257 20070293 140492051