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30243682464 = 2531272480617
BaseRepresentation
bin11100001010101010…
…011111100010100000
32220001201211020212120
4130022222133202200
5443414340314324
621521015024240
72120316026232
oct341252374240
986051736776
1030243682464
111190a8522a6
125a4066b080
132b0ca050c8
14166c95c252
15bc0211179
hex70aa9f8a0

30243682464 has 48 divisors (see below), whose sum is σ = 80014814208. Its totient is φ = 10001843712.

The previous prime is 30243682423. The next prime is 30243682471. The reversal of 30243682464 is 46428634203.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×302436824642 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228117 + ... + 1252500.

It is an arithmetic number, because the mean of its divisors is an integer number (1666975296).

Almost surely, 230243682464 is an apocalyptic number.

It is an amenable number.

30243682464 is an abundant number, since it is smaller than the sum of its proper divisors (49771131744).

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

30243682464 is a wasteful number, since it uses less digits than its factorization.

30243682464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480757 (or 2480749 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 30243682464 in words is "thirty billion, two hundred forty-three million, six hundred eighty-two thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 127 254 381 508 762 1016 1524 2032 3048 4064 6096 12192 2480617 4961234 7441851 9922468 14883702 19844936 29767404 39689872 59534808 79379744 119069616 238139232 315038359 630076718 945115077 1260153436 1890230154 2520306872 3780460308 5040613744 7560920616 10081227488 15121841232 30243682464