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142591730407 = 748746738951
BaseRepresentation
bin1000010011001100100…
…0010010001011100111
3111122001110111102111021
42010303020102023213
54314011440333112
6145301123352011
713205361465430
oct2046310221347
9448043442437
10142591730407
11555223505a5
1223775822607
13105a57cab99
146c8991a487
153a9851b907
hex21332122e7

142591730407 has 16 divisors (see below), whose sum is σ = 163349793792. Its totient is φ = 121930790400.

The previous prime is 142591730389. The next prime is 142591730429. The reversal of 142591730407 is 704037195241.

It is a cyclic number.

It is not a de Polignac number, because 142591730407 - 27 = 142591730279 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 (142591730447) 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, 15925782 + ... + 15934732.

It is an arithmetic number, because the mean of its divisors is an integer number (10209362112).

Almost surely, 2142591730407 is an apocalyptic number.

142591730407 is a deficient number, since it is larger than the sum of its proper divisors (20758063385).

142591730407 is an equidigital number, since it uses as much as digits as its factorization.

142591730407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14118.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 142591730407 in words is "one hundred forty-two billion, five hundred ninety-one million, seven hundred thirty thousand, four hundred seven".

Divisors: 1 7 487 3409 4673 8951 32711 62657 2275751 4359137 15930257 30513959 41828023 292796161 20370247201 142591730407