Search a number
-
+
30472168544 = 253672594701
BaseRepresentation
bin11100011000010010…
…000110010001100000
32220122122202112211222
4130120102012101200
5444401333343134
621555420154212
72126062105346
oct343022062140
986578675758
1030472168544
1111a17821274
125aa5098968
132b4815427c
141691037996
15bd52e5a2e
hex718486460

30472168544 has 24 divisors (see below), whose sum is σ = 60155571168. Its totient is φ = 15194563200.

The previous prime is 30472168541. The next prime is 30472168579. The reversal of 30472168544 is 44586127403.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30472168495 and 30472168504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472168541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285607 + ... + 1309094.

It is an arithmetic number, because the mean of its divisors is an integer number (2506482132).

Almost surely, 230472168544 is an apocalyptic number.

It is an amenable number.

30472168544 is a deficient number, since it is larger than the sum of its proper divisors (29683402624).

30472168544 is a wasteful number, since it uses less digits than its factorization.

30472168544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595078 (or 2595070 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 30472168544 in words is "thirty billion, four hundred seventy-two million, one hundred sixty-eight thousand, five hundred forty-four".

Divisors: 1 2 4 8 16 32 367 734 1468 2936 5872 11744 2594701 5189402 10378804 20757608 41515216 83030432 952255267 1904510534 3809021068 7618042136 15236084272 30472168544