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51152160 = 2535611747
BaseRepresentation
bin1100001100100…
…0010100100000
310120020210120110
43003020110200
5101043332120
65024211320
71160533443
oct303102440
9116223513
1051152160
1126968414
1215169b40
13a79c967
146b1765a
1547562e0
hex30c8520

51152160 has 96 divisors (see below), whose sum is σ = 163864512. Its totient is φ = 13409280.

The previous prime is 51152159. The next prime is 51152173. The reversal of 51152160 is 6125115.

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

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, 28407 + ... + 30153.

It is an arithmetic number, because the mean of its divisors is an integer number (1706922).

Almost surely, 251152160 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 51152160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81932256).

51152160 is an abundant number, since it is smaller than the sum of its proper divisors (112712352).

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

51152160 is a wasteful number, since it uses less digits than its factorization.

51152160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 51152160 is about 7152.0738251223. The cubic root of 51152160 is about 371.2114177275.

Adding to 51152160 its reverse (6125115), we get a palindrome (57277275).

The spelling of 51152160 in words is "fifty-one million, one hundred fifty-two thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 61 80 96 120 122 160 183 240 244 305 366 480 488 610 732 915 976 1220 1464 1747 1830 1952 2440 2928 3494 3660 4880 5241 5856 6988 7320 8735 9760 10482 13976 14640 17470 20964 26205 27952 29280 34940 41928 52410 55904 69880 83856 104820 106567 139760 167712 209640 213134 279520 319701 419280 426268 532835 639402 838560 852536 1065670 1278804 1598505 1705072 2131340 2557608 3197010 3410144 4262680 5115216 6394020 8525360 10230432 12788040 17050720 25576080 51152160