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13446264431 = 1011019130649
BaseRepresentation
bin11001000010111010…
…11011011001101111
31021201002112000011202
430201131123121233
5210014220430211
610102132040115
7654132235055
oct144135333157
937632460152
1013446264431
11578007a536
12273316303b
1313639912b2
14917b341d5
1553a70353b
hex32175b66f

13446264431 has 8 divisors (see below), whose sum is σ = 13592826000. Its totient is φ = 13299966400.

The previous prime is 13446264421. The next prime is 13446264437.

13446264431 is nontrivially palindromic in base 10.

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 13446264431 - 26 = 13446264367 is a prime.

It is a super-3 number, since 3×134462644313 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13446264437) 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, 37595 + ... + 168243.

It is an arithmetic number, because the mean of its divisors is an integer number (1699103250).

Almost surely, 213446264431 is an apocalyptic number.

13446264431 is a deficient number, since it is larger than the sum of its proper divisors (146561569).

13446264431 is a wasteful number, since it uses less digits than its factorization.

13446264431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131769.

The product of its digits is 165888, while the sum is 38.

The spelling of 13446264431 in words is "thirteen billion, four hundred forty-six million, two hundred sixty-four thousand, four hundred thirty-one".

Divisors: 1 101 1019 102919 130649 13195549 133131331 13446264431