Search a number
-
+
30021560488052 = 2271763070505227
BaseRepresentation
bin1101101001101111100000…
…11100101101000001110100
310221022000220011120000220122
412310313300130231001310
512413333123441104202
6143503414155151112
76215662153460030
oct664676034550164
9127260804500818
1030021560488052
119625088264921
12344a467a45498
13139a0371c72a3
1475b0a09dd1c0
15370de2a3b9a2
hex1b4df072d074

30021560488052 has 24 divisors (see below), whose sum is σ = 63575069269824. Its totient is φ = 12109537003392.

The previous prime is 30021560488019. The next prime is 30021560488057. The reversal of 30021560488052 is 25088406512003.

It is a junction number, because it is equal to n+sod(n) for n = 30021560487994 and 30021560488012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021560488057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31535252138 + ... + 31535253089.

It is an arithmetic number, because the mean of its divisors is an integer number (2648961219576).

Almost surely, 230021560488052 is an apocalyptic number.

It is an amenable number.

30021560488052 is an abundant number, since it is smaller than the sum of its proper divisors (33553508781772).

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

30021560488052 is a wasteful number, since it uses less digits than its factorization.

30021560488052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63070505255 (or 63070505253 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 30021560488052 in words is "thirty trillion, twenty-one billion, five hundred sixty million, four hundred eighty-eight thousand, fifty-two".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 63070505227 126141010454 252282020908 441493536589 882987073178 1072198588859 1765974146356 2144397177718 4288794355436 7505390122013 15010780244026 30021560488052