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63744468 = 22319793539
BaseRepresentation
bin1111001100101…
…0100111010100
311102221112222020
43303022213110
5112304310333
610154133140
71402550634
oct363124724
9142845866
1063744468
1132a89187
12194211b0
131028b428
1486746c4
1558e23b3
hex3cca9d4

63744468 has 48 divisors (see below), whose sum is σ = 158592000. Its totient is φ = 19869408.

The previous prime is 63744467. The next prime is 63744479. The reversal of 63744468 is 86444736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63744467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16243 + ... + 19781.

It is an arithmetic number, because the mean of its divisors is an integer number (3304000).

Almost surely, 263744468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63744468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79296000).

63744468 is an abundant number, since it is smaller than the sum of its proper divisors (94847532).

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

63744468 is a wasteful number, since it uses less digits than its factorization.

63744468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644 (or 3642 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 63744468 is about 7984.0132765421. The cubic root of 63744468 is about 399.4669315774.

The spelling of 63744468 in words is "sixty-three million, seven hundred forty-four thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 79 114 158 228 237 316 474 948 1501 3002 3539 4503 6004 7078 9006 10617 14156 18012 21234 42468 67241 134482 201723 268964 279581 403446 559162 806892 838743 1118324 1677486 3354972 5312039 10624078 15936117 21248156 31872234 63744468