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13203244990 = 2513317232953
BaseRepresentation
bin11000100101111100…
…11000011110111110
31021002011020100011201
430102332120132332
5204020012314430
610022051210114
7645121505425
oct142276303676
937064210151
1013203244990
115665984421
1226858a693a
131325524000
148d37542bc
155241ec8ca
hex312f987be

13203244990 has 256 divisors, whose sum is σ = 29981145600. Its totient is φ = 4157497344.

The previous prime is 13203244981. The next prime is 13203245021. The reversal of 13203244990 is 9944230231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 249117804 + ... + 249117856.

It is an arithmetic number, because the mean of its divisors is an integer number (117113850).

Almost surely, 213203244990 is an apocalyptic number.

13203244990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13203244990 is an abundant number, since it is smaller than the sum of its proper divisors (16777900610).

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

13203244990 is a wasteful number, since it uses less digits than its factorization.

13203244990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 13203244990 in words is "thirteen billion, two hundred three million, two hundred forty-four thousand, nine hundred ninety".