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142196508 = 22323949903
BaseRepresentation
bin10000111100110…
…11111100011100
3100220120022221100
420132123330130
5242400242013
622035433100
73344436036
oct1036337434
9326508840
10142196508
11732a2383
123b755790
13235c905c
1414c56c56
15c73c473
hex879bf1c

142196508 has 18 divisors (see below), whose sum is σ = 359441264. Its totient is φ = 47398824.

The previous prime is 142196497. The next prime is 142196533. The reversal of 142196508 is 805691241.

142196508 is a `hidden beast` number, since 142 + 1 + 9 + 6 + 508 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3949903 = 142196508 / (1 + 4 + 2 + 1 + 9 + 6 + 5 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1974916 + ... + 1974987.

Almost surely, 2142196508 is an apocalyptic number.

142196508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142196508 is an abundant number, since it is smaller than the sum of its proper divisors (217244756).

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

142196508 is a wasteful number, since it uses less digits than its factorization.

142196508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949913 (or 3949908 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 142196508 is about 11924.6177297220. The cubic root of 142196508 is about 521.9508915796.

The spelling of 142196508 in words is "one hundred forty-two million, one hundred ninety-six thousand, five hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 3949903 7899806 11849709 15799612 23699418 35549127 47398836 71098254 142196508