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142505612 = 22435711451
BaseRepresentation
bin10000111111001…
…11011010001100
3100221011000221122
420133213122030
5242440134422
622050220112
73350164154
oct1037473214
9327130848
10142505612
1173493637
123b884638
13236a6962
1414cd7764
15c79dd42
hex87e768c

142505612 has 24 divisors (see below), whose sum is σ = 255807552. Its totient is φ = 69426000.

The previous prime is 142505581. The next prime is 142505617. The reversal of 142505612 is 216505241.

142505612 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142505617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97487 + ... + 98937.

It is an arithmetic number, because the mean of its divisors is an integer number (10658648).

Almost surely, 2142505612 is an apocalyptic number.

It is an amenable number.

142505612 is a deficient number, since it is larger than the sum of its proper divisors (113301940).

142505612 is a wasteful number, since it uses less digits than its factorization.

142505612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069 (or 2067 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 142505612 is about 11937.5714448124. The cubic root of 142505612 is about 522.3288200951.

The spelling of 142505612 in words is "one hundred forty-two million, five hundred five thousand, six hundred twelve".

Divisors: 1 2 4 43 86 172 571 1142 1451 2284 2902 5804 24553 49106 62393 98212 124786 249572 828521 1657042 3314084 35626403 71252806 142505612