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1213023610460 = 22560651180523
BaseRepresentation
bin10001101001101101110…
…101110110011001011100
311021222000200221001220102
4101221231311312121130
5124333233021013320
62325131053440232
7153431566364564
oct21515565663134
94258020831812
101213023610460
11428493228422
121771131a0078
138a50683529c
14429d407bda4
1521848253175
hex11a6dd7665c

1213023610460 has 12 divisors (see below), whose sum is σ = 2547349582008. Its totient is φ = 485209444176.

The previous prime is 1213023610439. The next prime is 1213023610489. The reversal of 1213023610460 is 640163203121.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30325590242 + ... + 30325590281.

It is an arithmetic number, because the mean of its divisors is an integer number (212279131834).

Almost surely, 21213023610460 is an apocalyptic number.

1213023610460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213023610460 is an abundant number, since it is smaller than the sum of its proper divisors (1334325971548).

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

1213023610460 is a wasteful number, since it uses less digits than its factorization.

1213023610460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60651180532 (or 60651180530 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 1213023610460 its reverse (640163203121), we get a palindrome (1853186813581).

The spelling of 1213023610460 in words is "one trillion, two hundred thirteen billion, twenty-three million, six hundred ten thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 60651180523 121302361046 242604722092 303255902615 606511805230 1213023610460