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140380013 = 1132814421
BaseRepresentation
bin10000101111000…
…00011101101101
3100210011001011202
420113200131231
5241414130023
621532455245
73323132114
oct1027403555
9323131152
10140380013
1172271644
123b01a525
13231112c7
1414902c7b
15c4ce128
hex85e076d

140380013 has 8 divisors (see below), whose sum is σ = 142158456. Its totient is φ = 138611200.

The previous prime is 140380003. The next prime is 140380021. The reversal of 140380013 is 310083041.

It is a happy number.

140380013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15342889 + 125037124 = 3917^2 + 11182^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-140380013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140380003) 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, 29543 + ... + 33963.

It is an arithmetic number, because the mean of its divisors is an integer number (17769807).

Almost surely, 2140380013 is an apocalyptic number.

It is an amenable number.

140380013 is a deficient number, since it is larger than the sum of its proper divisors (1778443).

140380013 is a wasteful number, since it uses less digits than its factorization.

140380013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 140380013 is about 11848.2071639552. The cubic root of 140380013 is about 519.7187988988.

The spelling of 140380013 in words is "one hundred forty million, three hundred eighty thousand, thirteen".

Divisors: 1 113 281 4421 31753 499573 1242301 140380013