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13230401144 = 231653800143
BaseRepresentation
bin11000101001001011…
…11110011001111000
31021011001100000102012
430110211332121320
5204043440314034
610024501225052
7645601361042
oct142445763170
937131300365
1013230401144
11567a242224
122692a02188
13132b04173c
148d71c2a92
155267b3cce
hex31497e678

13230401144 has 8 divisors (see below), whose sum is σ = 24807002160. Its totient is φ = 6615200568.

The previous prime is 13230401131. The next prime is 13230401189. The reversal of 13230401144 is 44110403231.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826900064 + ... + 826900079.

It is an arithmetic number, because the mean of its divisors is an integer number (3100875270).

Almost surely, 213230401144 is an apocalyptic number.

It is an amenable number.

13230401144 is a deficient number, since it is larger than the sum of its proper divisors (11576601016).

13230401144 is a wasteful number, since it uses less digits than its factorization.

13230401144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653800149 (or 1653800145 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13230401144 its reverse (44110403231), we get a palindrome (57340804375).

The spelling of 13230401144 in words is "thirteen billion, two hundred thirty million, four hundred one thousand, one hundred forty-four".

Divisors: 1 2 4 8 1653800143 3307600286 6615200572 13230401144