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142590039 = 385355721
BaseRepresentation
bin10000111111111…
…00000001010111
3100221022022202120
420133330001113
5243000340124
622052111023
73350665254
oct1037740127
9327268676
10142590039
1173541009
123b905473
1323706207
1414d1a42b
15c7b8d79
hex87fc057

142590039 has 8 divisors (see below), whose sum is σ = 190346352. Its totient is φ = 94946880.

The previous prime is 142590037. The next prime is 142590043. The reversal of 142590039 is 930095241.

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

It is not a de Polignac number, because 142590039 - 21 = 142590037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142589991 and 142590009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142590031) 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, 25302 + ... + 30419.

It is an arithmetic number, because the mean of its divisors is an integer number (23793294).

Almost surely, 2142590039 is an apocalyptic number.

142590039 is a deficient number, since it is larger than the sum of its proper divisors (47756313).

142590039 is an equidigital number, since it uses as much as digits as its factorization.

142590039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56577.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 142590039 is about 11941.1071094769. The cubic root of 142590039 is about 522.4319504183.

The spelling of 142590039 in words is "one hundred forty-two million, five hundred ninety thousand, thirty-nine".

Divisors: 1 3 853 2559 55721 167163 47530013 142590039