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142898628 = 22311908219
BaseRepresentation
bin10001000010001…
…11010111000100
3100221220000001210
420201013113010
5243040224003
622102451420
73353422035
oct1041072704
9327800053
10142898628
1173731944
123ba33b70
13237b3802
1414d9aa8c
15c82a503
hex88475c4

142898628 has 12 divisors (see below), whose sum is σ = 333430160. Its totient is φ = 47632872.

The previous prime is 142898611. The next prime is 142898629. The reversal of 142898628 is 826898241.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (142898629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5954098 + ... + 5954121.

Almost surely, 2142898628 is an apocalyptic number.

It is an amenable number.

142898628 is an abundant number, since it is smaller than the sum of its proper divisors (190531532).

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

142898628 is a wasteful number, since it uses less digits than its factorization.

142898628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11908226 (or 11908224 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 142898628 is about 11954.0214154066. The cubic root of 142898628 is about 522.8085559506.

The spelling of 142898628 in words is "one hundred forty-two million, eight hundred ninety-eight thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 11908219 23816438 35724657 47632876 71449314 142898628