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245470680000 = 26325471359127
BaseRepresentation
bin1110010010011100110…
…0010101001111000000
3212110121021101120010200
43210213030111033000
513010210443230000
6304433452325200
723506664232120
oct3444714251700
9773537346120
10245470680000
1195115888087
123b6a7773800
131a1bc8baaa0
14bc49072c80
1565ba388500
hex39273153c0

245470680000 has 1680 divisors, whose sum is σ = 1109116968960. Its totient is φ = 50512896000.

The previous prime is 245470679921. The next prime is 245470680029. The reversal of 245470680000 is 86074542.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 1932839937 + ... + 1932840063.

It is an arithmetic number, because the mean of its divisors is an integer number (660188672).

Almost surely, 2245470680000 is an apocalyptic number.

245470680000 is a gapful number since it is divisible by the number (20) 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 245470680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554558484480).

245470680000 is an abundant number, since it is smaller than the sum of its proper divisors (863646288960).

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

245470680000 is a wasteful number, since it uses less digits than its factorization.

245470680000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 245470680000 in words is "two hundred forty-five billion, four hundred seventy million, six hundred eighty thousand".