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142552152 = 23321979891
BaseRepresentation
bin10000111111100…
…10110001011000
3100221020101210100
420133302301120
5242443132102
622051215400
73350446641
oct1037626130
9327211710
10142552152
11735155a6
123b8a7560
13236c1bb2
1414d0a6c8
15c7aca1c
hex87f2c58

142552152 has 24 divisors (see below), whose sum is σ = 386078940. Its totient is φ = 47517360.

The previous prime is 142552147. The next prime is 142552159. The reversal of 142552152 is 251255241.

142552152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1425521522 = 40642232079662208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142552159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 989874 + ... + 990017.

Almost surely, 2142552152 is an apocalyptic number.

142552152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142552152 is an abundant number, since it is smaller than the sum of its proper divisors (243526788).

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

142552152 is a wasteful number, since it uses less digits than its factorization.

142552152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979903 (or 1979896 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 142552152 is about 11939.5205933907. The cubic root of 142552152 is about 522.3856752535.

The spelling of 142552152 in words is "one hundred forty-two million, five hundred fifty-two thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1979891 3959782 5939673 7919564 11879346 15839128 17819019 23758692 35638038 47517384 71276076 142552152