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142154430 = 23511239161
BaseRepresentation
bin10000111100100…
…01101010111110
3100220111012012220
420132101222332
5242342420210
622034510210
73344202255
oct1036215276
9326435186
10142154430
1173273800
123b735366
13235b2b62
1414c4579c
15c72ec70
hex8791abe

142154430 has 48 divisors (see below), whose sum is σ = 375015312. Its totient is φ = 34460800.

The previous prime is 142154401. The next prime is 142154443. The reversal of 142154430 is 34451241.

142154430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142154430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15951 + ... + 23210.

It is an arithmetic number, because the mean of its divisors is an integer number (7812819).

Almost surely, 2142154430 is an apocalyptic number.

142154430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142154430 is an abundant number, since it is smaller than the sum of its proper divisors (232860882).

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

142154430 is a wasteful number, since it uses less digits than its factorization.

142154430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39193 (or 39182 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142154430 is about 11922.8532658924. The cubic root of 142154430 is about 521.8994022319.

The spelling of 142154430 in words is "one hundred forty-two million, one hundred fifty-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 121 165 242 330 363 605 726 1210 1815 3630 39161 78322 117483 195805 234966 391610 430771 587415 861542 1174830 1292313 2153855 2584626 4307710 4738481 6461565 9476962 12923130 14215443 23692405 28430886 47384810 71077215 142154430