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245968623 = 3319974943
BaseRepresentation
bin11101010100100…
…10111011101111
3122010211111112000
432222102323233
51000431443443
640223543343
76044461455
oct1652227357
9563744460
10245968623
1111692a95a
126a45ab53
133bc60784
142494a9d5
15168d98d3
hexea92eef

245968623 has 32 divisors (see below), whose sum is σ = 387609600. Its totient is φ = 153715968.

The previous prime is 245968621. The next prime is 245968669. The reversal of 245968623 is 326869542.

It is not a de Polignac number, because 245968623 - 21 = 245968621 is a prime.

It is a super-2 number, since 2×2459686232 = 121001127001032258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245968621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47290 + ... + 52232.

It is an arithmetic number, because the mean of its divisors is an integer number (12112800).

Almost surely, 2245968623 is an apocalyptic number.

245968623 is a deficient number, since it is larger than the sum of its proper divisors (141640977).

245968623 is a wasteful number, since it uses less digits than its factorization.

245968623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068 (or 5062 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 245968623 is about 15683.3868472342. The cubic root of 245968623 is about 626.5560145219.

The spelling of 245968623 in words is "two hundred forty-five million, nine hundred sixty-eight thousand, six hundred twenty-three".

Divisors: 1 3 9 19 27 57 97 171 291 513 873 1843 2619 4943 5529 14829 16587 44487 49761 93917 133461 281751 479471 845253 1438413 2535759 4315239 9109949 12945717 27329847 81989541 245968623