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634382144 = 2611901111
BaseRepresentation
bin100101110011111…
…110011101000000
31122012200221200222
4211303332131000
52244400212034
6142541002212
721502105424
oct4563763500
91565627628
10634382144
112a6101770
12158553368
13a1576366
1460376b84
153aa6012e
hex25cfe740

634382144 has 28 divisors (see below), whose sum is σ = 1373294688. Its totient is φ = 288355200.

The previous prime is 634382143. The next prime is 634382167. The reversal of 634382144 is 441283436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634382143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449852 + ... + 451259.

Almost surely, 2634382144 is an apocalyptic number.

634382144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

634382144 is an abundant number, since it is smaller than the sum of its proper divisors (738912544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634382144 is a wasteful number, since it uses less digits than its factorization.

634382144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901134 (or 901124 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

The square root of 634382144 is about 25186.9439194198. The cubic root of 634382144 is about 859.2449402981.

The spelling of 634382144 in words is "six hundred thirty-four million, three hundred eighty-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 901111 1802222 3604444 7208888 9912221 14417776 19824442 28835552 39648884 57671104 79297768 158595536 317191072 634382144