Search a number
-
+
30472103639 = 436710576919
BaseRepresentation
bin11100011000010001…
…110110011011010111
32220122122122020211002
4130120101312123113
5444401324304024
621555414533515
72126061415205
oct343021663327
986578566732
1030472103639
1111a1778752a
125aa506729b
132b48130873
14169101c075
15bd52d16ae
hex7184766d7

30472103639 has 8 divisors (see below), whose sum is σ = 31646144640. Its totient is φ = 29319216696.

The previous prime is 30472103609. The next prime is 30472103659. The reversal of 30472103639 is 93630127403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30472103639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472103609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5285579 + ... + 5291340.

It is an arithmetic number, because the mean of its divisors is an integer number (3955768080).

Almost surely, 230472103639 is an apocalyptic number.

30472103639 is a deficient number, since it is larger than the sum of its proper divisors (1174041001).

30472103639 is a wasteful number, since it uses less digits than its factorization.

30472103639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10577029.

The product of its (nonzero) digits is 81648, while the sum is 38.

The spelling of 30472103639 in words is "thirty billion, four hundred seventy-two million, one hundred three thousand, six hundred thirty-nine".

Divisors: 1 43 67 2881 10576919 454807517 708653573 30472103639