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13031223000000 = 2635615532797
BaseRepresentation
bin1011110110100001000101…
…1010101111101111000000
31201010202212100002021020220
42331220101122233233000
53202000421042000000
643414243341503040
72513321565621042
oct275502132575700
951122770067226
1013031223000000
114174568729827
121565656271a80
13736aba53874a
14330a00a69a92
15178e8a8411a0
hexbda116afbc0

13031223000000 has 392 divisors, whose sum is σ = 43140673104816. Its totient is φ = 3471513600000.

The previous prime is 13031222999981. The next prime is 13031223000031. The reversal of 13031223000000 is 32213031.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 55 ways as a sum of consecutive naturals, for example, 4658998602 + ... + 4659001398.

Almost surely, 213031223000000 is an apocalyptic number.

13031223000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13031223000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21570336552408).

13031223000000 is an abundant number, since it is smaller than the sum of its proper divisors (30109450104816).

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

13031223000000 is an frugal number, since it uses more digits than its factorization.

13031223000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395 (or 4360 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 13031223000000 its reverse (32213031), we get a palindrome (13031255213031).

The spelling of 13031223000000 in words is "thirteen trillion, thirty-one billion, two hundred twenty-three million", and thus it is an aban number.