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30168682511 = 1117697123143
BaseRepresentation
bin11100000110001100…
…011001000000001111
32212212111200212021112
4130012030121000033
5443241140320021
621505335322235
72115415366412
oct340614310017
985774625245
1030168682511
1111881486770
125a1b52037b
132aca305836
1416629d7b79
15bb8848d5b
hex70631900f

30168682511 has 16 divisors (see below), whose sum is σ = 34853753088. Its totient is φ = 25807958400.

The previous prime is 30168682507. The next prime is 30168682519. The reversal of 30168682511 is 11528686103.

It is not a de Polignac number, because 30168682511 - 22 = 30168682507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30168682519) 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, 1292006 + ... + 1315148.

It is an arithmetic number, because the mean of its divisors is an integer number (2178359568).

Almost surely, 230168682511 is an apocalyptic number.

30168682511 is a deficient number, since it is larger than the sum of its proper divisors (4685070577).

30168682511 is a wasteful number, since it uses less digits than its factorization.

30168682511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30142.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 30168682511 in words is "thirty billion, one hundred sixty-eight million, six hundred eighty-two thousand, five hundred eleven".

Divisors: 1 11 17 187 6971 23143 76681 118507 254573 393431 1303577 4327741 161329853 1774628383 2742607501 30168682511