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142972672 = 285471021
BaseRepresentation
bin10001000010110…
…01011100000000
3100222000202122011
420201121130000
5243100111142
622104222304
73354150643
oct1041313400
9328022564
10142972672
1173782537
123ba6a994
132380b41b
1414db9a5a
15c842417
hex8859700

142972672 has 36 divisors (see below), whose sum is σ = 286188616. Its totient is φ = 71285760.

The previous prime is 142972657. The next prime is 142972673. The reversal of 142972672 is 276279241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142972673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139522 + ... + 140542.

Almost surely, 2142972672 is an apocalyptic number.

It is an amenable number.

142972672 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

142972672 is an equidigital number, since it uses as much as digits as its factorization.

142972672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584 (or 1570 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 142972672 is about 11957.1180474226. The cubic root of 142972672 is about 522.8988394219.

The spelling of 142972672 in words is "one hundred forty-two million, nine hundred seventy-two thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 128 256 547 1021 1094 2042 2188 4084 4376 8168 8752 16336 17504 32672 35008 65344 70016 130688 140032 261376 558487 1116974 2233948 4467896 8935792 17871584 35743168 71486336 142972672