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142502824 = 2317812853
BaseRepresentation
bin10000111111001…
…10101110101000
3100221010220010101
420133212232220
5242440042244
622050155144
73350153062
oct1037465650
9327126111
10142502824
1173491532
123b882ab4
13236a55c9
1414cd6732
15c79d0d4
hex87e6ba8

142502824 has 8 divisors (see below), whose sum is σ = 267192810. Its totient is φ = 71251408.

The previous prime is 142502813. The next prime is 142502887. The reversal of 142502824 is 428205241.

It can be written as a sum of positive squares in only one way, i.e., 136656100 + 5846724 = 11690^2 + 2418^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 142502792 and 142502801.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8906419 + ... + 8906434.

Almost surely, 2142502824 is an apocalyptic number.

It is an amenable number.

142502824 is a deficient number, since it is larger than the sum of its proper divisors (124689986).

142502824 is a wasteful number, since it uses less digits than its factorization.

142502824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17812859 (or 17812855 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 142502824 is about 11937.4546700710. The cubic root of 142502824 is about 522.3254137678.

The spelling of 142502824 in words is "one hundred forty-two million, five hundred two thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 17812853 35625706 71251412 142502824