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142020052 = 22311145323
BaseRepresentation
bin10000111011100…
…00110111010100
3100220020100212221
420131300313110
5242324120202
622031552124
73343102426
oct1035606724
9326210787
10142020052
1173191849
123b68b644
1323566945
1414c0c816
15c705037
hex8770dd4

142020052 has 12 divisors (see below), whose sum is σ = 256552576. Its totient is φ = 68719320.

The previous prime is 142020049. The next prime is 142020061. The reversal of 142020052 is 250020241.

142020052 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572538 + ... + 572785.

Almost surely, 2142020052 is an apocalyptic number.

It is an amenable number.

142020052 is a deficient number, since it is larger than the sum of its proper divisors (114532524).

142020052 is a wasteful number, since it uses less digits than its factorization.

142020052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145358 (or 1145356 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 142020052 is about 11917.2166213424. The cubic root of 142020052 is about 521.7349005982.

Adding to 142020052 its reverse (250020241), we get a palindrome (392040293).

The spelling of 142020052 in words is "one hundred forty-two million, twenty thousand, fifty-two".

Divisors: 1 2 4 31 62 124 1145323 2290646 4581292 35505013 71010026 142020052