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202112439 = 3172233117
BaseRepresentation
bin11000000101111…
…11110110110111
3112002022101010220
430002333312313
5403220044224
632015545423
75002633044
oct1402776667
9462271126
10202112439
11a40a6081
125782b273
1332b46979
141cbb21cb
1512b25279
hexc0bfdb7

202112439 has 12 divisors (see below), whose sum is σ = 286268904. Its totient is φ = 126815104.

The previous prime is 202112429. The next prime is 202112441. The reversal of 202112439 is 934211202.

It is not a de Polignac number, because 202112439 - 215 = 202079671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115692 + ... + 117425.

It is an arithmetic number, because the mean of its divisors is an integer number (23855742).

Almost surely, 2202112439 is an apocalyptic number.

202112439 is a deficient number, since it is larger than the sum of its proper divisors (84156465).

202112439 is a wasteful number, since it uses less digits than its factorization.

202112439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233154 (or 233137 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 202112439 is about 14216.6254434729. The cubic root of 202112439 is about 586.8552772879.

The spelling of 202112439 in words is "two hundred two million, one hundred twelve thousand, four hundred thirty-nine".

Divisors: 1 3 17 51 289 867 233117 699351 3962989 11888967 67370813 202112439