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142248956 = 22311147169
BaseRepresentation
bin10000111101010…
…00101111111100
3100220122222212212
420132220233330
5242403431311
622040515552
73345044663
oct1036505774
9326588785
10142248956
1173328823
123b77bbb8
1323616ba5
1414c6bdda
15c74cc8b
hex87a8bfc

142248956 has 12 divisors (see below), whose sum is σ = 256966080. Its totient is φ = 68830080.

The previous prime is 142248949. The next prime is 142248971. The reversal of 142248956 is 659842241.

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, 573461 + ... + 573708.

It is an arithmetic number, because the mean of its divisors is an integer number (21413840).

Almost surely, 2142248956 is an apocalyptic number.

It is an amenable number.

142248956 is a deficient number, since it is larger than the sum of its proper divisors (114717124).

142248956 is a wasteful number, since it uses less digits than its factorization.

142248956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147204 (or 1147202 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 142248956 is about 11926.8166750395. The cubic root of 142248956 is about 522.0150561073.

The spelling of 142248956 in words is "one hundred forty-two million, two hundred forty-eight thousand, nine hundred fifty-six".

Divisors: 1 2 4 31 62 124 1147169 2294338 4588676 35562239 71124478 142248956