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30287589050 = 252605751781
BaseRepresentation
bin11100001101010001…
…111110111010111010
32220011210102221101102
4130031101332322322
5444012110322200
621525224051402
72121361154615
oct341521767272
986153387342
1030287589050
1111932610a34
125a53303b62
132b18b38b34
14167470b17c
15bc3ed56d5
hex70d47eeba

30287589050 has 12 divisors (see below), whose sum is σ = 56334915726. Its totient is φ = 12115035600.

The previous prime is 30287589043. The next prime is 30287589107. The reversal of 30287589050 is 5098578203.

It can be written as a sum of positive squares in 3 ways, for example, as 29271445921 + 1016143129 = 171089^2 + 31877^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30287588986 and 30287589004.

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, 302875841 + ... + 302875940.

Almost surely, 230287589050 is an apocalyptic number.

30287589050 is a deficient number, since it is larger than the sum of its proper divisors (26047326676).

30287589050 is a wasteful number, since it uses less digits than its factorization.

30287589050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605751793 (or 605751788 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 30287589050 in words is "thirty billion, two hundred eighty-seven million, five hundred eighty-nine thousand, fifty".

Divisors: 1 2 5 10 25 50 605751781 1211503562 3028758905 6057517810 15143794525 30287589050