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140076231 = 346692077
BaseRepresentation
bin10000101100101…
…10010011000111
3100202120121110120
420112112103013
5241324414411
621522153023
73320425341
oct1026262307
9322517416
10140076231
1172084389
123aab2773
1323035c59
1414864291
15c46e106
hex85964c7

140076231 has 4 divisors (see below), whose sum is σ = 186768312. Its totient is φ = 93384152.

The previous prime is 140076217. The next prime is 140076239. The reversal of 140076231 is 132670041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140076231 - 25 = 140076199 is a prime.

It is a super-2 number, since 2×1400762312 = 39242700982330722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140076239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23346036 + ... + 23346041.

It is an arithmetic number, because the mean of its divisors is an integer number (46692078).

Almost surely, 2140076231 is an apocalyptic number.

140076231 is a deficient number, since it is larger than the sum of its proper divisors (46692081).

140076231 is an equidigital number, since it uses as much as digits as its factorization.

140076231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46692080.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 140076231 is about 11835.3804755065. The cubic root of 140076231 is about 519.3436380888.

The spelling of 140076231 in words is "one hundred forty million, seventy-six thousand, two hundred thirty-one".

Divisors: 1 3 46692077 140076231