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388330656132260 = 22541473573970893
BaseRepresentation
bin101100001001011110100011…
…0110100000110110010100100
31212220222001022010000220201102
41120102331012310012302210
5401344402140432213020
63453524350213215232
7144536651445435242
oct13022750664066244
91786861263026642
10388330656132260
11102809119699a96
12376790bb031518
131388b567c720ca
146bc7438411792
152ed6588e00475
hex1612f46d06ca4

388330656132260 has 24 divisors (see below), whose sum is σ = 835384484657016. Its totient is φ = 151543670685440.

The previous prime is 388330656132259. The next prime is 388330656132319. The reversal of 388330656132260 is 62231656033883.

It can be written as a sum of positive squares in 4 ways, for example, as 2131202898496 + 386199453233764 = 1459864^2 + 19651958^2 .

It is a super-2 number, since 2×3883306561322602 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388330656132196 and 388330656132205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236786984627 + ... + 236786986266.

It is an arithmetic number, because the mean of its divisors is an integer number (34807686860709).

Almost surely, 2388330656132260 is an apocalyptic number.

It is an amenable number.

388330656132260 is an abundant number, since it is smaller than the sum of its proper divisors (447053828524756).

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

388330656132260 is a wasteful number, since it uses less digits than its factorization.

388330656132260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473573970943 (or 473573970941 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 56.

The spelling of 388330656132260 in words is "three hundred eighty-eight trillion, three hundred thirty billion, six hundred fifty-six million, one hundred thirty-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 473573970893 947147941786 1894295883572 2367869854465 4735739708930 9471479417860 19416532806613 38833065613226 77666131226452 97082664033065 194165328066130 388330656132260