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52133120 = 285132241
BaseRepresentation
bin1100011011011…
…1110100000000
310122002122012022
43012313310000
5101321224440
65101221012
71202060414
oct306676400
9118078168
1052133120
1127478426
1215561768
13aa54300
146cd0d44
15489bcb5
hex31b7d00

52133120 has 108 divisors (see below), whose sum is σ = 135780876. Its totient is φ = 19169280.

The previous prime is 52133113. The next prime is 52133129. The reversal of 52133120 is 2133125.

It can be written as a sum of positive squares in 6 ways, for example, as 5456896 + 46676224 = 2336^2 + 6832^2 .

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52133129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216200 + ... + 216440.

Almost surely, 252133120 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 52133120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67890438).

52133120 is an abundant number, since it is smaller than the sum of its proper divisors (83647756).

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

52133120 is a wasteful number, since it uses less digits than its factorization.

52133120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 52133120 is about 7220.3268624073. The cubic root of 52133120 is about 373.5693518932.

Adding to 52133120 its reverse (2133125), we get a palindrome (54266245).

The spelling of 52133120 in words is "fifty-two million, one hundred thirty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 169 208 241 256 260 320 338 416 482 520 640 676 832 845 964 1040 1205 1280 1352 1664 1690 1928 2080 2410 2704 3133 3328 3380 3856 4160 4820 5408 6266 6760 7712 8320 9640 10816 12532 13520 15424 15665 16640 19280 21632 25064 27040 30848 31330 38560 40729 43264 50128 54080 61696 62660 77120 81458 100256 108160 125320 154240 162916 200512 203645 216320 250640 308480 325832 401024 407290 501280 651664 802048 814580 1002560 1303328 1629160 2005120 2606656 3258320 4010240 5213312 6516640 10426624 13033280 26066560 52133120