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49695720297 = 3472897121661
BaseRepresentation
bin101110010010000110…
…001000001101101001
311202021101021011100020
4232102012020031221
51303234101022142
634455131431053
73406335436626
oct562206101551
9152241234306
1049695720297
111a091a36223
12976abb5489
1348bca03c72
14259616534d
15145ccdccec
hexb92188369

49695720297 has 16 divisors (see below), whose sum is σ = 67694683392. Its totient is φ = 32414117120.

The previous prime is 49695720259. The next prime is 49695720301. The reversal of 49695720297 is 79202759694.

It is a cyclic number.

It is not a de Polignac number, because 49695720297 - 210 = 49695719273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49695720297.

It is not an unprimeable number, because it can be changed into a prime (49695725297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347647 + ... + 469307.

It is an arithmetic number, because the mean of its divisors is an integer number (4230917712).

Almost surely, 249695720297 is an apocalyptic number.

49695720297 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

49695720297 is a deficient number, since it is larger than the sum of its proper divisors (17998963095).

49695720297 is a wasteful number, since it uses less digits than its factorization.

49695720297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124608.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 49695720297 in words is "forty-nine billion, six hundred ninety-five million, seven hundred twenty thousand, two hundred ninety-seven".

Divisors: 1 3 47 141 2897 8691 121661 136159 364983 408477 5718067 17154201 352451917 1057355751 16565240099 49695720297