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52913936 = 241929161
BaseRepresentation
bin1100100111011…
…0011100010000
310200120022021102
43021312130100
5102021221221
65130043532
71211522015
oct311663420
9120508242
1052913936
1127961029
12158795a8
13ac6882a
14705570c
1549a330b
hex3276710

52913936 has 30 divisors (see below), whose sum is σ = 108212382. Its totient is φ = 25061760.

The previous prime is 52913933. The next prime is 52913969. The reversal of 52913936 is 63931925.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 11182336 = 6460^2 + 3344^2 .

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 52913936.

It is not an unprimeable number, because it can be changed into a prime (52913933) 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, 1196 + ... + 10356.

Almost surely, 252913936 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 52913936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54106191).

52913936 is an abundant number, since it is smaller than the sum of its proper divisors (55298446).

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

52913936 is a wasteful number, since it uses less digits than its factorization.

52913936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207 (or 9182 counting only the distinct ones).

The product of its digits is 43740, while the sum is 38.

The square root of 52913936 is about 7274.1965879401. The cubic root of 52913936 is about 375.4251438990.

The spelling of 52913936 in words is "fifty-two million, nine hundred thirteen thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 16 19 38 76 152 304 361 722 1444 2888 5776 9161 18322 36644 73288 146576 174059 348118 696236 1392472 2784944 3307121 6614242 13228484 26456968 52913936