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52163808 = 2532941457
BaseRepresentation
bin1100011011111…
…1010011100000
310122011012021220
43012333103200
5101323220213
65102015040
71202246034
oct306772340
9118135256
1052163808
1127499494
1215577480
13aa65278
146cdc1c4
1548a5e23
hex31bf4e0

52163808 has 96 divisors (see below), whose sum is σ = 145424160. Its totient is φ = 16343040.

The previous prime is 52163791. The next prime is 52163831. The reversal of 52163808 is 80836125.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113916 + ... + 114372.

It is an arithmetic number, because the mean of its divisors is an integer number (1514835).

Almost surely, 252163808 is an apocalyptic number.

52163808 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52163808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72712080).

52163808 is an abundant number, since it is smaller than the sum of its proper divisors (93260352).

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

52163808 is a wasteful number, since it uses less digits than its factorization.

52163808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 52163808 is about 7222.4516613128. The cubic root of 52163808 is about 373.6426376635.

The spelling of 52163808 in words is "fifty-two million, one hundred sixty-three thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 29 32 41 48 58 82 87 96 116 123 164 174 232 246 328 348 457 464 492 656 696 914 928 984 1189 1312 1371 1392 1828 1968 2378 2742 2784 3567 3656 3936 4756 5484 7134 7312 9512 10968 13253 14268 14624 18737 19024 21936 26506 28536 37474 38048 39759 43872 53012 56211 57072 74948 79518 106024 112422 114144 149896 159036 212048 224844 299792 318072 424096 449688 543373 599584 636144 899376 1086746 1272288 1630119 1798752 2173492 3260238 4346984 6520476 8693968 13040952 17387936 26081904 52163808