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142223032 = 23713119387
BaseRepresentation
bin10000111101000…
…10011010111000
3100220121200022201
420132202122320
5242402114112
622040155544
73344606260
oct1036423270
9326550281
10142223032
11733102a6
123b768bb4
1323608153
1414c627a0
15c745257
hex87a26b8

142223032 has 32 divisors (see below), whose sum is σ = 307105920. Its totient is φ = 60484320.

The previous prime is 142223027. The next prime is 142223057. The reversal of 142223032 is 230322241.

It is a congruent number.

It is an unprimeable number.

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, 2358 + ... + 17029.

It is an arithmetic number, because the mean of its divisors is an integer number (9597060).

Almost surely, 2142223032 is an apocalyptic number.

It is an amenable number.

142223032 is an abundant number, since it is smaller than the sum of its proper divisors (164882888).

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

142223032 is a wasteful number, since it uses less digits than its factorization.

142223032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19531 (or 19527 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 142223032 is about 11925.7298309160. The cubic root of 142223032 is about 521.9833428330.

Adding to 142223032 its reverse (230322241), we get a palindrome (372545273).

The spelling of 142223032 in words is "one hundred forty-two million, two hundred twenty-three thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 56 131 262 524 917 1048 1834 3668 7336 19387 38774 77548 135709 155096 271418 542836 1085672 2539697 5079394 10158788 17777879 20317576 35555758 71111516 142223032