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213070344480 = 25345717913121
BaseRepresentation
bin1100011001101111111…
…0110111000100100000
3202100222020102222110000
43012123332313010200
511442332002010410
6241514432540000
721252040021410
oct3063376670440
9670866388400
10213070344480
11823a9722494
12353649b1600
1317128150416
14a453d1c640
155820b6ddc0
hex319bfb7120

213070344480 has 480 divisors, whose sum is σ = 864250611840. Its totient is φ = 48426024960.

The previous prime is 213070344469. The next prime is 213070344481. The reversal of 213070344480 is 84443070312.

213070344480 is a `hidden beast` number, since 2 + 1 + 307 + 0 + 344 + 4 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is not an unprimeable number, because it can be changed into a prime (213070344481) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 16232320 + ... + 16245440.

It is an arithmetic number, because the mean of its divisors is an integer number (1800522108).

Almost surely, 2213070344480 is an apocalyptic number.

213070344480 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 213070344480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432125305920).

213070344480 is an abundant number, since it is smaller than the sum of its proper divisors (651180267360).

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

213070344480 is a wasteful number, since it uses less digits than its factorization.

213070344480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13334 (or 13317 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 213070344480 in words is "two hundred thirteen billion, seventy million, three hundred forty-four thousand, four hundred eighty".