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142513052 = 221123313901
BaseRepresentation
bin10000111111010…
…01001110011100
3100221011102011012
420133221032130
5242440404202
622050314352
73350224643
oct1037511634
9327142135
10142513052
1173499190
123b8889b8
13236aa166
1414cda35a
15c7a1152
hex87e939c

142513052 has 24 divisors (see below), whose sum is σ = 273257712. Its totient is φ = 64496000.

The previous prime is 142513039. The next prime is 142513067. The reversal of 142513052 is 250315241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3302 + ... + 17202.

It is an arithmetic number, because the mean of its divisors is an integer number (11385738).

Almost surely, 2142513052 is an apocalyptic number.

It is an amenable number.

142513052 is a deficient number, since it is larger than the sum of its proper divisors (130744660).

142513052 is a wasteful number, since it uses less digits than its factorization.

142513052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14149 (or 14147 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 142513052 is about 11937.8830619168. The cubic root of 142513052 is about 522.3379099331.

Adding to 142513052 its reverse (250315241), we get a palindrome (392828293).

The spelling of 142513052 in words is "one hundred forty-two million, five hundred thirteen thousand, fifty-two".

Divisors: 1 2 4 11 22 44 233 466 932 2563 5126 10252 13901 27802 55604 152911 305822 611644 3238933 6477866 12955732 35628263 71256526 142513052