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13215224000 = 265311263571
BaseRepresentation
bin11000100111011000…
…00101000011000000
31021002222202221021202
430103230011003000
5204031044132000
610023200040332
7645325356566
oct142354050300
937088687252
1013215224000
115671716430
1226899030a8
131327b59594
148d5191a36
155252b6dd5
hex313b050c0

13215224000 has 224 divisors, whose sum is σ = 35901245952. Its totient is φ = 4778880000.

The previous prime is 13215223979. The next prime is 13215224041. The reversal of 13215224000 is 42251231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23143715 + ... + 23144285.

Almost surely, 213215224000 is an apocalyptic number.

13215224000 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 13215224000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17950622976).

13215224000 is an abundant number, since it is smaller than the sum of its proper divisors (22686021952).

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

13215224000 is a wasteful number, since it uses less digits than its factorization.

13215224000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 13215224000 its reverse (42251231), we get a palindrome (13257475231).

The spelling of 13215224000 in words is "thirteen billion, two hundred fifteen million, two hundred twenty-four thousand".