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142772852 = 22242314731
BaseRepresentation
bin10001000001010…
…00101001110100
3100221122121112102
420200220221310
5243022212402
622100041232
73352356245
oct1040505164
9327577472
10142772852
11736563a2
123b993218
132376b4a1
1414d66ccc
15c803102
hex8828a74

142772852 has 12 divisors (see below), whose sum is σ = 249972576. Its totient is φ = 71352120.

The previous prime is 142772849. The next prime is 142772863. The reversal of 142772852 is 258277241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2327 + ... + 17057.

It is an arithmetic number, because the mean of its divisors is an integer number (20831048).

Almost surely, 2142772852 is an apocalyptic number.

It is an amenable number.

142772852 is a deficient number, since it is larger than the sum of its proper divisors (107199724).

142772852 is a wasteful number, since it uses less digits than its factorization.

142772852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17158 (or 17156 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 142772852 is about 11948.7594335144. The cubic root of 142772852 is about 522.6551230082.

The spelling of 142772852 in words is "one hundred forty-two million, seven hundred seventy-two thousand, eight hundred fifty-two".

Divisors: 1 2 4 2423 4846 9692 14731 29462 58924 35693213 71386426 142772852