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30486224738 = 233123732
BaseRepresentation
bin11100011001000111…
…101101111101100010
32220200122012200022202
4130121013231331202
5444413433142423
622001041333202
72126322430454
oct343107557542
986618180282
1030486224738
1111a24751962
125aa9937202
132b4b036148
141692c562d4
15bd6670728
hex7191edf62

30486224738 has 18 divisors (see below), whose sum is σ = 45991209537. Its totient is φ = 15156317880.

The previous prime is 30486224719. The next prime is 30486224801. The reversal of 30486224738 is 83742268403.

It can be written as a sum of positive squares in 2 ways, for example, as 30428266969 + 57957769 = 174437^2 + 7613^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=123463.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30486224692 and 30486224701.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 81732320 + ... + 81732692.

Almost surely, 230486224738 is an apocalyptic number.

30486224738 is a deficient number, since it is larger than the sum of its proper divisors (15504984799).

30486224738 is an frugal number, since it uses more digits than its factorization.

30486224738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 30486224738 in words is "thirty billion, four hundred eighty-six million, two hundred twenty-four thousand, seven hundred thirty-eight".

Divisors: 1 2 331 373 662 746 109561 123463 139129 219122 246926 278258 40866253 46051699 81732506 92103398 15243112369 30486224738