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142924746 = 23177917737
BaseRepresentation
bin10001000010011…
…01101111001010
3100221221022220010
420201031233022
5243042042441
622103212350
73353561136
oct1041155712
9327838803
10142924746
117374a528
123ba470b6
13237c2673
1414da63c6
15c833116
hex884dbca

142924746 has 32 divisors (see below), whose sum is σ = 306512640. Its totient is φ = 44269056.

The previous prime is 142924739. The next prime is 142924751. The reversal of 142924746 is 647429241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811 + ... + 16926.

It is an arithmetic number, because the mean of its divisors is an integer number (9578520).

Almost surely, 2142924746 is an apocalyptic number.

142924746 is an abundant number, since it is smaller than the sum of its proper divisors (163587894).

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

142924746 is a wasteful number, since it uses less digits than its factorization.

142924746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17838.

The product of its digits is 96768, while the sum is 39.

The square root of 142924746 is about 11955.1138012149. The cubic root of 142924746 is about 522.8404057597.

The spelling of 142924746 in words is "one hundred forty-two million, nine hundred twenty-four thousand, seven hundred forty-six".

Divisors: 1 2 3 6 17 34 51 79 102 158 237 474 1343 2686 4029 8058 17737 35474 53211 106422 301529 603058 904587 1401223 1809174 2802446 4203669 8407338 23820791 47641582 71462373 142924746