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51204433413 = 372719295281
BaseRepresentation
bin101111101100000001…
…011010011000000101
311220011112011201122210
4233230001122120011
51314331313332123
635304544414033
73461615334300
oct575401323005
9156145151583
1051204433413
111a796627771
129b10317319
134aa0457113
14269a695b37
1514ea4a8e93
hexbec05a605

51204433413 has 48 divisors (see below), whose sum is σ = 80639660160. Its totient is φ = 28811059200.

The previous prime is 51204433403. The next prime is 51204433433. The reversal of 51204433413 is 31433440215.

It is not a de Polignac number, because 51204433413 - 29 = 51204432901 is a prime.

It is a super-2 number, since 2×512044334132 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51204433403) 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, 9693333 + ... + 9698613.

It is an arithmetic number, because the mean of its divisors is an integer number (1679992920).

Almost surely, 251204433413 is an apocalyptic number.

It is an amenable number.

51204433413 is a deficient number, since it is larger than the sum of its proper divisors (29435226747).

51204433413 is a wasteful number, since it uses less digits than its factorization.

51204433413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298 (or 6291 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 51204433413 its reverse (31433440215), we get a palindrome (82637873628).

The spelling of 51204433413 in words is "fifty-one billion, two hundred four million, four hundred thirty-three thousand, four hundred thirteen".

Divisors: 1 3 7 21 49 71 147 213 497 929 1491 2787 3479 5281 6503 10437 15843 19509 36967 45521 65959 110901 136563 197877 258769 374951 461713 776307 1124853 1385139 2624657 3231991 4906049 7873971 9695973 14718147 18372599 34342343 55117797 103027029 240396401 348329479 721189203 1044988437 2438306353 7314919059 17068144471 51204433413