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52691372349 = 3711228101179
BaseRepresentation
bin110001000100101001…
…101000100100111101
312001000011010001102020
4301010221220210331
51330402442403344
640112302550353
73543512163240
oct610451504475
9161004101366
1052691372349
11203899a6a20
12a2662983b9
134c79525445
14279bd59257
151585cc3719
hexc44a6893d

52691372349 has 16 divisors (see below), whose sum is σ = 87590853120. Its totient is φ = 27372141360.

The previous prime is 52691372323. The next prime is 52691372353. The reversal of 52691372349 is 94327319625.

It is not a de Polignac number, because 52691372349 - 211 = 52691370301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52691372399) 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, 114050359 + ... + 114050820.

It is an arithmetic number, because the mean of its divisors is an integer number (5474428320).

Almost surely, 252691372349 is an apocalyptic number.

It is an amenable number.

52691372349 is a deficient number, since it is larger than the sum of its proper divisors (34899480771).

52691372349 is a wasteful number, since it uses less digits than its factorization.

52691372349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228101200.

The product of its digits is 2449440, while the sum is 51.

The spelling of 52691372349 in words is "fifty-two billion, six hundred ninety-one million, three hundred seventy-two thousand, three hundred forty-nine".

Divisors: 1 3 7 11 21 33 77 231 228101179 684303537 1596708253 2509112969 4790124759 7527338907 17563790783 52691372349