Search a number
-
+
30505056426 = 23213130363489
BaseRepresentation
bin11100011010001111…
…100011100010101010
32220201221122102112200
4130122033203202222
5444433243301201
622002553121030
72126641462365
oct343217434252
986657572480
1030505056426
1111a34344439
125ab40b9176
132b51bca860
1416955590dc
15bd8140386
hex71a3e38aa

30505056426 has 24 divisors (see below), whose sum is σ = 71178465540. Its totient is φ = 9386171136.

The previous prime is 30505056409. The next prime is 30505056443. The reversal of 30505056426 is 62465050503.

It is a happy number.

30505056426 is a `hidden beast` number, since 3 + 0 + 5 + 0 + 5 + 0 + 5 + 642 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (30505056409) and next prime (30505056443).

It can be written as a sum of positive squares in 2 ways, for example, as 21183347025 + 9321709401 = 145545^2 + 96549^2 .

It is a super-3 number, since 3×305050564263 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65181511 + ... + 65181978.

Almost surely, 230505056426 is an apocalyptic number.

30505056426 is an abundant number, since it is smaller than the sum of its proper divisors (40673409114).

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

30505056426 is a wasteful number, since it uses less digits than its factorization.

30505056426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130363510 (or 130363507 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 30505056426 in words is "thirty billion, five hundred five million, fifty-six thousand, four hundred twenty-six".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 130363489 260726978 391090467 782180934 1173271401 1694725357 2346542802 3389450714 5084176071 10168352142 15252528213 30505056426