Search a number
-
+
12130405462 = 273138897187
BaseRepresentation
bin10110100110000011…
…10100110001010110
31011022101111110000101
423103001310301112
5144320340433322
65323404404314
7606413513410
oct132301646126
934271443011
1012130405462
11516533018a
12242654669a
1311b4192a16
148310859b0
154aee2e327
hex2d3074c56

12130405462 has 32 divisors (see below), whose sum is σ = 21474293760. Its totient is φ = 5029050240.

The previous prime is 12130405439. The next prime is 12130405531. The reversal of 12130405462 is 26450403121.

It is a self number, because there is not a number n which added to its sum of digits gives 12130405462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1684233 + ... + 1691419.

It is an arithmetic number, because the mean of its divisors is an integer number (671071680).

Almost surely, 212130405462 is an apocalyptic number.

12130405462 is a deficient number, since it is larger than the sum of its proper divisors (9343888298).

12130405462 is a wasteful number, since it uses less digits than its factorization.

12130405462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11116.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 12130405462 its reverse (26450403121), we get a palindrome (38580808583).

The spelling of 12130405462 in words is "twelve billion, one hundred thirty million, four hundred five thousand, four hundred sixty-two".

Divisors: 1 2 7 14 31 62 217 434 3889 7187 7778 14374 27223 50309 54446 100618 120559 222797 241118 445594 843913 1559579 1687826 3119158 27950243 55900486 195651701 391303402 866457533 1732915066 6065202731 12130405462