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83238872 = 2310404859
BaseRepresentation
bin1001111011000…
…01111111011000
312210121222021012
410331201333120
5132302120442
612132033052
72030342633
oct475417730
9183558235
1083238872
1142a93662
1223a62788
1314325692
14b0aac1a
157493582
hex4f61fd8

83238872 has 8 divisors (see below), whose sum is σ = 156072900. Its totient is φ = 41619432.

The previous prime is 83238821. The next prime is 83238893. The reversal of 83238872 is 27883238.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5202422 + ... + 5202437.

Almost surely, 283238872 is an apocalyptic number.

It is an amenable number.

83238872 is a deficient number, since it is larger than the sum of its proper divisors (72834028).

83238872 is a wasteful number, since it uses less digits than its factorization.

83238872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10404865 (or 10404861 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 83238872 is about 9123.5339644241. The cubic root of 83238872 is about 436.6251308186.

The spelling of 83238872 in words is "eighty-three million, two hundred thirty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 10404859 20809718 41619436 83238872