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142712272 = 2471125627
BaseRepresentation
bin10001000000110…
…01110111010000
3100221112112102201
420200121313100
5243013243042
622054452544
73352014523
oct1040316720
9327475381
10142712272
117361492a
123b964154
1323749a41
1414d4cbba
15c7e01b7
hex8819dd0

142712272 has 20 divisors (see below), whose sum is σ = 280401696. Its totient is φ = 70350560.

The previous prime is 142712237. The next prime is 142712279. The reversal of 142712272 is 272217241.

It is a self number, because there is not a number n which added to its sum of digits gives 142712272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142712279) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 61678 + ... + 63949.

Almost surely, 2142712272 is an apocalyptic number.

It is an amenable number.

142712272 is a deficient number, since it is larger than the sum of its proper divisors (137689424).

142712272 is a wasteful number, since it uses less digits than its factorization.

142712272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125706 (or 125700 counting only the distinct ones).

The product of its digits is 3136, while the sum is 28.

The square root of 142712272 is about 11946.2241733529. The cubic root of 142712272 is about 522.5811898895.

The spelling of 142712272 in words is "one hundred forty-two million, seven hundred twelve thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 71 142 284 568 1136 125627 251254 502508 1005016 2010032 8919517 17839034 35678068 71356136 142712272