Search a number
-
+
142574173431 = 3191271918157
BaseRepresentation
bin1000010011001000010…
…1010011110011110111
3111122000020110102211220
42010302011103303313
54313442442022211
6145255255201423
713205056323054
oct2046205236367
9448006412756
10142574173431
11555134497a8
122376b976273
13105a1c91741
146c8746a02b
153a96bee806
hex2132153cf7

142574173431 has 16 divisors (see below), whose sum is σ = 191799533568. Its totient is φ = 94202805600.

The previous prime is 142574173429. The next prime is 142574173481. The reversal of 142574173431 is 134371475241.

142574173431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142574173431 - 21 = 142574173429 is a prime.

It is a super-2 number, since 2×1425741734312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142574173481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303796 + ... + 614361.

It is an arithmetic number, because the mean of its divisors is an integer number (11987470848).

Almost surely, 2142574173431 is an apocalyptic number.

142574173431 is a deficient number, since it is larger than the sum of its proper divisors (49225360137).

142574173431 is a wasteful number, since it uses less digits than its factorization.

142574173431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918622.

The product of its digits is 282240, while the sum is 42.

The spelling of 142574173431 in words is "one hundred forty-two billion, five hundred seventy-four million, one hundred seventy-three thousand, four hundred thirty-one".

Divisors: 1 3 191 271 573 813 51761 155283 918157 2754471 175367987 248820547 526103961 746461641 47524724477 142574173431