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140008038 = 23235032017
BaseRepresentation
bin10000101100001…
…01101001100110
3100202110010220220
420112011221212
5241320224123
621520505210
73320022462
oct1026055146
9322403826
10140008038
1172038125
123aa7b206
1323010bc1
14148474a2
15c458ce3
hex8585a66

140008038 has 32 divisors (see below), whose sum is σ = 292916736. Its totient is φ = 44529408.

The previous prime is 140008031. The next prime is 140008049. The reversal of 140008038 is 830800041.

It is a junction number, because it is equal to n+sod(n) for n = 140007999 and 140008017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140008031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68406 + ... + 70422.

It is an arithmetic number, because the mean of its divisors is an integer number (9153648).

Almost surely, 2140008038 is an apocalyptic number.

140008038 is an abundant number, since it is smaller than the sum of its proper divisors (152908698).

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

140008038 is a wasteful number, since it uses less digits than its factorization.

140008038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 140008038 is about 11832.4992288189. The cubic root of 140008038 is about 519.2593474396.

Adding to 140008038 its reverse (830800041), we get a palindrome (970808079).

The spelling of 140008038 in words is "one hundred forty million, eight thousand, thirty-eight".

Divisors: 1 2 3 6 23 46 69 138 503 1006 1509 2017 3018 4034 6051 11569 12102 23138 34707 46391 69414 92782 139173 278346 1014551 2029102 3043653 6087306 23334673 46669346 70004019 140008038