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223693380 = 223353791093
BaseRepresentation
bin11010101010101…
…00101001000100
3120120220210122000
431111110221010
5424231142010
634110305300
75354235201
oct1525245104
9516823560
10223693380
111052a6169
1262ab8230
1337461861
14219ccca8
15149897c0
hexd554a44

223693380 has 96 divisors (see below), whose sum is σ = 698409600. Its totient is φ = 59439744.

The previous prime is 223693333. The next prime is 223693391. The reversal of 223693380 is 83396322.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204114 + ... + 205206.

It is an arithmetic number, because the mean of its divisors is an integer number (7275100).

Almost surely, 2223693380 is an apocalyptic number.

223693380 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 223693380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349204800).

223693380 is an abundant number, since it is smaller than the sum of its proper divisors (474716220).

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

223693380 is a wasteful number, since it uses less digits than its factorization.

223693380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 223693380 is about 14956.3825840341. The cubic root of 223693380 is about 607.0405610220.

The spelling of 223693380 in words is "two hundred twenty-three million, six hundred ninety-three thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 379 540 758 1093 1137 1516 1895 2186 2274 3279 3411 3790 4372 4548 5465 5685 6558 6822 7580 9837 10233 10930 11370 13116 13644 16395 17055 19674 20466 21860 22740 29511 32790 34110 39348 40932 49185 51165 59022 65580 68220 98370 102330 118044 147555 196740 204660 295110 414247 590220 828494 1242741 1656988 2071235 2485482 3728223 4142470 4970964 6213705 7456446 8284940 11184669 12427410 14912892 18641115 22369338 24854820 37282230 44738676 55923345 74564460 111846690 223693380