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142154311 = 1364716901
BaseRepresentation
bin10000111100100…
…01101001000111
3100220111012001111
420132101221013
5242342414221
622034505451
73344202025
oct1036215107
9326435044
10142154311
1173273702
123b735287
13235b2aa0
1414c45715
15c72ebe1
hex8791a47

142154311 has 8 divisors (see below), whose sum is σ = 153334944. Its totient is φ = 131008800.

The previous prime is 142154293. The next prime is 142154359. The reversal of 142154311 is 113451241.

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

It is not a de Polignac number, because 142154311 - 25 = 142154279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142154381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40 + ... + 16861.

It is an arithmetic number, because the mean of its divisors is an integer number (19166868).

Almost surely, 2142154311 is an apocalyptic number.

142154311 is a deficient number, since it is larger than the sum of its proper divisors (11180633).

142154311 is a wasteful number, since it uses less digits than its factorization.

142154311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561.

The product of its digits is 480, while the sum is 22.

The square root of 142154311 is about 11922.8482754751. The cubic root of 142154311 is about 521.8992566014.

The spelling of 142154311 in words is "one hundred forty-two million, one hundred fifty-four thousand, three hundred eleven".

Divisors: 1 13 647 8411 16901 219713 10934947 142154311