Search a number
-
+
51545030130 = 23351117355229
BaseRepresentation
bin110000000000010100…
…101011110111110010
311221001021001211112000
4300000110223313302
51321031011431010
635402432514430
73503222345526
oct600024536762
9157037054460
1051545030130
111a95090a060
129ba63aba16
134b25b9a239
1426cd9d5d86
15151a3367c0
hexc0052bdf2

51545030130 has 64 divisors (see below), whose sum is σ = 149949187200. Its totient is φ = 12495764160.

The previous prime is 51545030027. The next prime is 51545030153. The reversal of 51545030130 is 3103054515.

51545030130 is a `hidden beast` number, since 5 + 154 + 503 + 0 + 1 + 3 + 0 = 666.

It is a super-2 number, since 2×515450301302 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 51545030094 and 51545030103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8674645 + ... + 8680584.

It is an arithmetic number, because the mean of its divisors is an integer number (2342956050).

Almost surely, 251545030130 is an apocalyptic number.

51545030130 is an abundant number, since it is smaller than the sum of its proper divisors (98404157070).

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

51545030130 is a wasteful number, since it uses less digits than its factorization.

51545030130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17355256 (or 17355250 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 51545030130 its reverse (3103054515), we get a palindrome (54648084645).

The spelling of 51545030130 in words is "fifty-one billion, five hundred forty-five million, thirty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 90 99 110 135 165 198 270 297 330 495 594 990 1485 2970 17355229 34710458 52065687 86776145 104131374 156197061 173552290 190907519 260328435 312394122 381815038 468591183 520656870 572722557 780985305 937182366 954537595 1145445114 1561970610 1718167671 1909075190 2342955915 2863612785 3436335342 4685911830 5154503013 5727225570 8590838355 10309006026 17181676710 25772515065 51545030130