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639241150 = 25212784823
BaseRepresentation
bin100110000110100…
…000101110111110
31122112211211000011
4212012200232332
52302121204100
6143233053434
721561313552
oct4606405676
91575754004
10639241150
112a8920379
1215a0b727a
13a2587c02
1460c7d862
153b1bebba
hex261a0bbe

639241150 has 12 divisors (see below), whose sum is σ = 1188988632. Its totient is φ = 255696440.

The previous prime is 639241129. The next prime is 639241151. The reversal of 639241150 is 51142936.

639241150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (639241151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6392362 + ... + 6392461.

It is an arithmetic number, because the mean of its divisors is an integer number (99082386).

Almost surely, 2639241150 is an apocalyptic number.

639241150 is a deficient number, since it is larger than the sum of its proper divisors (549747482).

639241150 is a wasteful number, since it uses less digits than its factorization.

639241150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12784835 (or 12784830 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 639241150 is about 25283.2187428737. The cubic root of 639241150 is about 861.4331386469.

The spelling of 639241150 in words is "six hundred thirty-nine million, two hundred forty-one thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 12784823 25569646 63924115 127848230 319620575 639241150