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13155142423 = 193122334707
BaseRepresentation
bin11000100000001101…
…11000101100010111
31020221210201110212011
430100012320230113
5203420204024143
610013212205051
7643665602623
oct142006705427
936853643764
1013155142423
11564080a235
122671769787
131318581457
148cb1d2183
1551ed99e9d
hex3101b8b17

13155142423 has 8 divisors (see below), whose sum is σ = 14294213120. Its totient is φ = 12060741240.

The previous prime is 13155142411. The next prime is 13155142501. The reversal of 13155142423 is 32424155131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13155142423 - 25 = 13155142391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155142723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11166765 + ... + 11167942.

It is an arithmetic number, because the mean of its divisors is an integer number (1786776640).

Almost surely, 213155142423 is an apocalyptic number.

13155142423 is a deficient number, since it is larger than the sum of its proper divisors (1139070697).

13155142423 is a wasteful number, since it uses less digits than its factorization.

13155142423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22334757.

The product of its digits is 14400, while the sum is 31.

Adding to 13155142423 its reverse (32424155131), we get a palindrome (45579297554).

The spelling of 13155142423 in words is "thirteen billion, one hundred fifty-five million, one hundred forty-two thousand, four hundred twenty-three".

Divisors: 1 19 31 589 22334707 424359433 692375917 13155142423