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51053611005 = 32529277141233
BaseRepresentation
bin101111100011000010…
…000100011111111101
311212210000101011012200
4233203002010133331
51314024211023010
635242000022113
73455104350645
oct574302043775
9155700334180
1051053611005
111a719483651
129a89901939
134a7812aaa7
142684635525
1514dc115cc0
hexbe30847fd

51053611005 has 48 divisors (see below), whose sum is σ = 91875541680. Its totient is φ = 26194581504.

The previous prime is 51053610961. The next prime is 51053611009. The reversal of 51053611005 is 50011635015.

51053611005 is a `hidden beast` number, since 5 + 10 + 536 + 110 + 0 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 8919480249 + 42134130756 = 94443^2 + 205266^2 .

It is not a de Polignac number, because 51053611005 - 28 = 51053610749 is a prime.

It is a super-2 number, since 2×510536110052 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51053611005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51053611009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290869 + ... + 432101.

It is an arithmetic number, because the mean of its divisors is an integer number (1914073785).

Almost surely, 251053611005 is an apocalyptic number.

It is an amenable number.

51053611005 is a deficient number, since it is larger than the sum of its proper divisors (40821930675).

51053611005 is a wasteful number, since it uses less digits than its factorization.

51053611005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141550 (or 141547 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The spelling of 51053611005 in words is "fifty-one billion, fifty-three million, six hundred eleven thousand, five".

Divisors: 1 3 5 9 15 29 45 87 145 261 277 435 831 1305 1385 2493 4155 8033 12465 24099 40165 72297 120495 141233 361485 423699 706165 1271097 2118495 4095757 6355485 12287271 20478785 36861813 39121541 61436355 117364623 184309065 195607705 352093869 586823115 1134524689 1760469345 3403574067 5672623445 10210722201 17017870335 51053611005