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51335047143 = 327180336537
BaseRepresentation
bin101111110011110011…
…101010011111100111
311220111121221121000100
4233303303222133213
51320113233002033
635325532115143
73465062462322
oct576363523747
9156447847010
1051335047143
111a8533287a6
129b48005ab3
134ac1529053
1426adb757b9
151506ba9513
hexbf3cea7e7

51335047143 has 12 divisors (see below), whose sum is σ = 75194999568. Its totient is φ = 33741345120.

The previous prime is 51335047109. The next prime is 51335047151. The reversal of 51335047143 is 34174053315.

51335047143 is a `hidden beast` number, since 5 + 1 + 3 + 3 + 504 + 7 + 143 = 666.

It is not a de Polignac number, because 51335047143 - 217 = 51334916071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51335047098 and 51335047107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51335047193) 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, 40167630 + ... + 40168907.

It is an arithmetic number, because the mean of its divisors is an integer number (6266249964).

Almost surely, 251335047143 is an apocalyptic number.

51335047143 is a deficient number, since it is larger than the sum of its proper divisors (23859952425).

51335047143 is a wasteful number, since it uses less digits than its factorization.

51335047143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80336614 (or 80336611 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 51335047143 in words is "fifty-one billion, three hundred thirty-five million, forty-seven thousand, one hundred forty-three".

Divisors: 1 3 9 71 213 639 80336537 241009611 723028833 5703894127 17111682381 51335047143