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142470155 = 5166717093
BaseRepresentation
bin10000111110111…
…10110000001011
3100221002020022102
420133132300023
5242433021110
622045344015
73346655612
oct1037366013
9327066272
10142470155
1173469a33
123b86800b
1323693789
1414cc8879
15c7935a5
hex87dec0b

142470155 has 8 divisors (see below), whose sum is σ = 171076752. Its totient is φ = 113901088.

The previous prime is 142470143. The next prime is 142470157. The reversal of 142470155 is 551074241.

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 142470155 - 212 = 142466059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142470157) 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, 212 + ... + 16881.

It is an arithmetic number, because the mean of its divisors is an integer number (21384594).

Almost surely, 2142470155 is an apocalyptic number.

142470155 is a deficient number, since it is larger than the sum of its proper divisors (28606597).

142470155 is a wasteful number, since it uses less digits than its factorization.

142470155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18765.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 142470155 is about 11936.0862513640. The cubic root of 142470155 is about 522.2854960722.

The spelling of 142470155 in words is "one hundred forty-two million, four hundred seventy thousand, one hundred fifty-five".

Divisors: 1 5 1667 8335 17093 85465 28494031 142470155