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142363880 = 2353559097
BaseRepresentation
bin10000111110001…
…00110011101000
3100220212211112022
420133010303220
5242421121010
622043204012
73346034021
oct1037046350
9326784468
10142363880
11733a70aa
123b816608
13236572a9
1414c9bc48
15c771d55
hex87c4ce8

142363880 has 16 divisors (see below), whose sum is σ = 320318820. Its totient is φ = 56945536.

The previous prime is 142363877. The next prime is 142363909. The reversal of 142363880 is 88363241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 124233316 + 18130564 = 11146^2 + 4258^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142363880.

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 3 ways as a sum of consecutive naturals, for example, 1779509 + ... + 1779588.

Almost surely, 2142363880 is an apocalyptic number.

142363880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142363880 is an abundant number, since it is smaller than the sum of its proper divisors (177954940).

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

142363880 is a wasteful number, since it uses less digits than its factorization.

142363880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559108 (or 3559104 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 142363880 is about 11931.6335847192. The cubic root of 142363880 is about 522.1555982273.

The spelling of 142363880 in words is "one hundred forty-two million, three hundred sixty-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3559097 7118194 14236388 17795485 28472776 35590970 71181940 142363880