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13230401142 = 237615164091
BaseRepresentation
bin11000101001001011…
…11110011001110110
31021011001100000102010
430110211332121312
5204043440314032
610024501225050
7645601361040
oct142445763166
937131300363
1013230401142
11567a242222
122692a02186
13132b04173a
148d71c2a90
155267b3ccc
hex31497e676

13230401142 has 32 divisors (see below), whose sum is σ = 30736675584. Its totient is φ = 3718144800.

The previous prime is 13230401131. The next prime is 13230401189. The reversal of 13230401142 is 24110403231.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2579484 + ... + 2584607.

It is an arithmetic number, because the mean of its divisors is an integer number (960521112).

Almost surely, 213230401142 is an apocalyptic number.

13230401142 is an abundant number, since it is smaller than the sum of its proper divisors (17506274442).

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

13230401142 is a wasteful number, since it uses less digits than its factorization.

13230401142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5164164.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13230401142 its reverse (24110403231), we get a palindrome (37340804373).

The spelling of 13230401142 in words is "thirteen billion, two hundred thirty million, four hundred one thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 61 122 183 366 427 854 1281 2562 5164091 10328182 15492273 30984546 36148637 72297274 108445911 216891822 315009551 630019102 945028653 1890057306 2205066857 4410133714 6615200571 13230401142