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142352013 = 357183101
BaseRepresentation
bin10000111110000…
…01111010001101
3100220212020020210
420133001322031
5242420231023
622043033033
73345654306
oct1037017215
9326766223
10142352013
11733991a1
123b80b779
1323651a7b
1414c977ad
15c76d593
hex87c1e8d

142352013 has 8 divisors (see below), whose sum is σ = 190137376. Its totient is φ = 94734000.

The previous prime is 142351967. The next prime is 142352027. The reversal of 142352013 is 310253241.

142352013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 142352013 - 29 = 142351501 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 (142352513) 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, 39838 + ... + 43263.

It is an arithmetic number, because the mean of its divisors is an integer number (23767172).

Almost surely, 2142352013 is an apocalyptic number.

It is an amenable number.

142352013 is a deficient number, since it is larger than the sum of its proper divisors (47785363).

142352013 is an equidigital number, since it uses as much as digits as its factorization.

142352013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83675.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 142352013 is about 11931.1362828525. The cubic root of 142352013 is about 522.1410894145.

The spelling of 142352013 in words is "one hundred forty-two million, three hundred fifty-two thousand, thirteen".

Divisors: 1 3 571 1713 83101 249303 47450671 142352013