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51076725 = 3527271359
BaseRepresentation
bin1100001011010…
…1111001110101
310120002222002120
43002311321311
5101033423400
65022430153
71160100510
oct302657165
9116088076
1051076725
1126916777
1215132359
13a77451b
146ad7d77
15473dca0
hex30b5e75

51076725 has 48 divisors (see below), whose sum is σ = 97136640. Its totient is φ = 23198400.

The previous prime is 51076723. The next prime is 51076741. The reversal of 51076725 is 52767015.

It is not a de Polignac number, because 51076725 - 21 = 51076723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51076723) 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, 142096 + ... + 142454.

It is an arithmetic number, because the mean of its divisors is an integer number (2023680).

Almost surely, 251076725 is an apocalyptic number.

It is an amenable number.

51076725 is a deficient number, since it is larger than the sum of its proper divisors (46059915).

51076725 is a wasteful number, since it uses less digits than its factorization.

51076725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 51076725 is about 7146.7982341745. The cubic root of 51076725 is about 371.0288505934.

The spelling of 51076725 in words is "fifty-one million, seventy-six thousand, seven hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 271 359 525 813 1077 1355 1795 1897 2513 4065 5385 5691 6775 7539 8975 9485 12565 20325 26925 28455 37695 47425 62825 97289 142275 188475 291867 486445 681023 1459335 2043069 2432225 3405115 7296675 10215345 17025575 51076725