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142085487431 = 1960712319907
BaseRepresentation
bin1000010001010011110…
…1000111101101000111
3111120202011220121200102
42010110331013231013
54311442341044211
6145135001034315
713160003500406
oct2042475075507
9446664817612
10142085487431
115529260a778
122365418599b
131052496b324
146c3c5bb63d
153a68d6da3b
hex2114f47b47

142085487431 has 8 divisors (see below), whose sum is σ = 149810081280. Its totient is φ = 134385534648.

The previous prime is 142085487421. The next prime is 142085487437. The reversal of 142085487431 is 134784580241.

142085487431 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 a cyclic number.

It is not a de Polignac number, because 142085487431 - 210 = 142085486407 is a prime.

It is a super-2 number, since 2×1420854874312 (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 (142085487437) 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 7 ways as a sum of consecutive naturals, for example, 6148421 + ... + 6171486.

It is an arithmetic number, because the mean of its divisors is an integer number (18726260160).

Almost surely, 2142085487431 is an apocalyptic number.

142085487431 is a deficient number, since it is larger than the sum of its proper divisors (7724593849).

142085487431 is a wasteful number, since it uses less digits than its factorization.

142085487431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320533.

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 142085487431 in words is "one hundred forty-two billion, eighty-five million, four hundred eighty-seven thousand, four hundred thirty-one".

Divisors: 1 19 607 11533 12319907 234078233 7478183549 142085487431