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13223969460 = 223251323137379
BaseRepresentation
bin11000101000011010…
…11100001010110100
31021010121020020210200
430110031130022310
5204040314010320
610024111320500
7645462612552
oct142415341264
937117206720
1013223969460
115676649a89
122690820130
1313298cc100
148d63cabd2
15525e43290
hex31435c2b4

13223969460 has 432 divisors, whose sum is σ = 46170109440. Its totient is φ = 3056901120.

The previous prime is 13223969453. The next prime is 13223969471. The reversal of 13223969460 is 6496932231.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 34891551 + ... + 34891929.

Almost surely, 213223969460 is an apocalyptic number.

13223969460 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 13223969460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23085054720).

13223969460 is an abundant number, since it is smaller than the sum of its proper divisors (32946139980).

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

13223969460 is a wasteful number, since it uses less digits than its factorization.

13223969460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 13223969460 in words is "thirteen billion, two hundred twenty-three million, nine hundred sixty-nine thousand, four hundred sixty".