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52638080 = 275117477
BaseRepresentation
bin1100100011001…
…1000110000000
310200001021212112
43020303012000
5101433404310
65120114452
71206262535
oct310630600
9120037775
1052638080
1127792850
1215765a28
13aba00c1
146dc2d8c
15494b705
hex3233180

52638080 has 64 divisors (see below), whose sum is σ = 137296080. Its totient is φ = 19138560.

The previous prime is 52638043. The next prime is 52638083. The reversal of 52638080 is 8083625.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52638083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3302 + ... + 10778.

Almost surely, 252638080 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 52638080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68648040).

52638080 is an abundant number, since it is smaller than the sum of its proper divisors (84658000).

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

52638080 is a wasteful number, since it uses less digits than its factorization.

52638080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7507 (or 7495 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 52638080 is about 7255.2105413971. The cubic root of 52638080 is about 374.7716061100.

The spelling of 52638080 in words is "fifty-two million, six hundred thirty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 320 352 440 640 704 880 1408 1760 3520 7040 7477 14954 29908 37385 59816 74770 82247 119632 149540 164494 239264 299080 328988 411235 478528 598160 657976 822470 957056 1196320 1315952 1644940 2392640 2631904 3289880 4785280 5263808 6579760 10527616 13159520 26319040 52638080