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693380915220 = 22357171916933019
BaseRepresentation
bin10100001011100001011…
…10010010000000010100
32110021201220112001101210
422011300232102000110
542330021003241340
61250311303221420
7101044424351160
oct12056056220024
92407656461353
10693380915220
112480744a52a4
12b246ba47870
1350502052926
14257ba1c1ca0
1513082e32180
hexa170b92014

693380915220 has 384 divisors, whose sum is σ = 2475267379200. Its totient is φ = 141183295488.

The previous prime is 693380915219. The next prime is 693380915243. The reversal of 693380915220 is 22519083396.

It is a self number, because there is not a number n which added to its sum of digits gives 693380915220.

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, 229670871 + ... + 229673889.

It is an arithmetic number, because the mean of its divisors is an integer number (6446008800).

Almost surely, 2693380915220 is an apocalyptic number.

693380915220 is a gapful number since it is divisible by the number (60) 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 693380915220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1237633689600).

693380915220 is an abundant number, since it is smaller than the sum of its proper divisors (1781886463980).

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

693380915220 is a wasteful number, since it uses less digits than its factorization.

693380915220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 693380915220 in words is "six hundred ninety-three billion, three hundred eighty million, nine hundred fifteen thousand, two hundred twenty".