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51100060 = 22511359647
BaseRepresentation
bin1100001011101…
…1100110011100
310120011011002211
43002323212130
5101040200220
65023130204
71160225524
oct302734634
9116134084
1051100060
1126932260
1215143964
13a78202b
146b02684
154745b5a
hex30bb99c

51100060 has 48 divisors (see below), whose sum is σ = 117573120. Its totient is φ = 18501440.

The previous prime is 51100057. The next prime is 51100157. The reversal of 51100060 is 6000115.

It is a super-2 number, since 2×511000602 = 5222432264007200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51100060.

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, 78657 + ... + 79303.

It is an arithmetic number, because the mean of its divisors is an integer number (2449440).

Almost surely, 251100060 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 51100060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58786560).

51100060 is an abundant number, since it is smaller than the sum of its proper divisors (66473060).

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

51100060 is a wasteful number, since it uses less digits than its factorization.

51100060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 51100060 is about 7148.4305969912. The cubic root of 51100060 is about 371.0853449494.

Adding to 51100060 its reverse (6000115), we get a palindrome (57100175).

The spelling of 51100060 in words is "fifty-one million, one hundred thousand, sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 359 647 718 1294 1436 1795 2588 3235 3590 3949 6470 7117 7180 7898 12940 14234 15796 19745 28468 35585 39490 71170 78980 142340 232273 464546 929092 1161365 2322730 2555003 4645460 5110006 10220012 12775015 25550030 51100060