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30348457692 = 22371392599217
BaseRepresentation
bin11100010000111010…
…001011011011011100
32220100000222101110120
4130100322023123130
5444123201121232
621535240434540
72123030430330
oct342072133334
986300871416
1030348457692
1111963a054a3
125a6b778a50
132b2862b297
14167c8337c0
15bc950a92c
hex710e8b6dc

30348457692 has 48 divisors (see below), whose sum is σ = 81511476480. Its totient is φ = 8608603392.

The previous prime is 30348457673. The next prime is 30348457709. The reversal of 30348457692 is 29675484303.

It is a super-2 number, since 2×303484576922 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287933 + ... + 1311284.

It is an arithmetic number, because the mean of its divisors is an integer number (1698155760).

Almost surely, 230348457692 is an apocalyptic number.

It is an amenable number.

30348457692 is an abundant number, since it is smaller than the sum of its proper divisors (51163018788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30348457692 is a wasteful number, since it uses less digits than its factorization.

30348457692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599370 (or 2599368 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 30348457692 in words is "thirty billion, three hundred forty-eight million, four hundred fifty-seven thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 139 278 417 556 834 973 1668 1946 2919 3892 5838 11676 2599217 5198434 7797651 10396868 15595302 18194519 31190604 36389038 54583557 72778076 109167114 218334228 361291163 722582326 1083873489 1445164652 2167746978 2529038141 4335493956 5058076282 7587114423 10116152564 15174228846 30348457692