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30488115854 = 272311103223
BaseRepresentation
bin11100011001001110…
…111011101010001110
32220200202202202110002
4130121032323222032
5444414424201404
622001150044302
72126344465100
oct343116735216
986622682402
1030488115854
1111a25823769
125aaa4a9692
132b4b548b51
1416931c9570
15bd68e5c1e
hex7193bba8e

30488115854 has 12 divisors (see below), whose sum is σ = 53198651304. Its totient is φ = 13066335324.

The previous prime is 30488115841. The next prime is 30488115871. The reversal of 30488115854 is 45851188403.

It is a super-2 number, since 2×304881158542 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30488115799 and 30488115808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155551514 + ... + 155551709.

It is an arithmetic number, because the mean of its divisors is an integer number (4433220942).

Almost surely, 230488115854 is an apocalyptic number.

30488115854 is a deficient number, since it is larger than the sum of its proper divisors (22710535450).

30488115854 is a wasteful number, since it uses less digits than its factorization.

30488115854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311103239 (or 311103232 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 47.

The spelling of 30488115854 in words is "thirty billion, four hundred eighty-eight million, one hundred fifteen thousand, eight hundred fifty-four".

Divisors: 1 2 7 14 49 98 311103223 622206446 2177722561 4355445122 15244057927 30488115854