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142830992 = 248926937
BaseRepresentation
bin10001000001101…
…10110110010000
3100221202120021202
420200312312100
5243031042432
622101210332
73353020613
oct1040666620
9327676252
10142830992
1173696047
123ba009a8
132378baa5
1414d8017a
15c815462
hex8836d90

142830992 has 10 divisors (see below), whose sum is σ = 276735078. Its totient is φ = 71415488.

The previous prime is 142830971. The next prime is 142831019. The reversal of 142830992 is 299038241.

It can be written as a sum of positive squares in only one way, i.e., 73342096 + 69488896 = 8564^2 + 8336^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4463453 + ... + 4463484.

Almost surely, 2142830992 is an apocalyptic number.

It is an amenable number.

142830992 is a deficient number, since it is larger than the sum of its proper divisors (133904086).

142830992 is an equidigital number, since it uses as much as digits as its factorization.

142830992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8926945 (or 8926939 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 142830992 is about 11951.1920744334. The cubic root of 142830992 is about 522.7260586345.

The spelling of 142830992 in words is "one hundred forty-two million, eight hundred thirty thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 8926937 17853874 35707748 71415496 142830992