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142561496 = 23711231431
BaseRepresentation
bin10000111111101…
…01000011011000
3100221020212121102
420133311003120
5242443431441
622051330532
73350516120
oct1037650330
9327225542
10142561496
1173521620
123b8b0a48
13236c621c
1414d0dc80
15c7b069b
hex87f50d8

142561496 has 32 divisors (see below), whose sum is σ = 333262080. Its totient is φ = 55543200.

The previous prime is 142561493. The next prime is 142561501. The reversal of 142561496 is 694165241.

142561496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142561493) 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, 115100 + ... + 116331.

It is an arithmetic number, because the mean of its divisors is an integer number (10414440).

Almost surely, 2142561496 is an apocalyptic number.

It is an amenable number.

142561496 is an abundant number, since it is smaller than the sum of its proper divisors (190700584).

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

142561496 is a wasteful number, since it uses less digits than its factorization.

142561496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231455 (or 231451 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 142561496 is about 11939.9118924722. The cubic root of 142561496 is about 522.3970887726.

The spelling of 142561496 in words is "one hundred forty-two million, five hundred sixty-one thousand, four hundred ninety-six".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 231431 462862 925724 1620017 1851448 2545741 3240034 5091482 6480068 10182964 12960136 17820187 20365928 35640374 71280748 142561496