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142715556 = 223213213001
BaseRepresentation
bin10001000000110…
…10101010100100
3100221112200221100
420200122222210
5243013344211
622054520100
73352030224
oct1040325244
9327480840
10142715556
1173617345
123b966030
132374b399
1414d50084
15c7e1156
hex881aaa4

142715556 has 36 divisors (see below), whose sum is σ = 361146604. Its totient is φ = 47520000.

The previous prime is 142715509. The next prime is 142715557. The reversal of 142715556 is 655517241.

142715556 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 108493056 + 34222500 = 10416^2 + 5850^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142715556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142715557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46056 + ... + 49056.

Almost surely, 2142715556 is an apocalyptic number.

It is an amenable number.

142715556 is an abundant number, since it is smaller than the sum of its proper divisors (218431048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142715556 is a wasteful number, since it uses less digits than its factorization.

142715556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332 (or 4327 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 142715556 is about 11946.3616218496. The cubic root of 142715556 is about 522.5851982892.

The spelling of 142715556 in words is "one hundred forty-two million, seven hundred fifteen thousand, five hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 1321 2642 3001 3963 5284 6002 7926 9003 11889 12004 15852 18006 23778 27009 36012 47556 54018 108036 3964321 7928642 11892963 15857284 23785926 35678889 47571852 71357778 142715556