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223396380 = 22345373727
BaseRepresentation
bin11010101000011…
…00001000011100
3120120100201020000
431110030020130
5424142141010
634100054300
75351560254
oct1524141034
9516321200
10223396380
11105113009
1262994390
133738960c
1421952964
151492b7c0
hexd50c21c

223396380 has 120 divisors (see below), whose sum is σ = 719936448. Its totient is φ = 57946752.

The previous prime is 223396379. The next prime is 223396421. The reversal of 223396380 is 83693322.

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 (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58077 + ... + 61803.

Almost surely, 2223396380 is an apocalyptic number.

223396380 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 223396380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359968224).

223396380 is an abundant number, since it is smaller than the sum of its proper divisors (496540068).

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

223396380 is a wasteful number, since it uses less digits than its factorization.

223396380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785 (or 3774 counting only the distinct ones).

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

The square root of 223396380 is about 14946.4504147306. The cubic root of 223396380 is about 606.7717840367.

The spelling of 223396380 in words is "two hundred twenty-three million, three hundred ninety-six thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 37 45 54 60 74 81 90 108 111 135 148 162 180 185 222 270 324 333 370 405 444 540 555 666 740 810 999 1110 1332 1620 1665 1998 2220 2997 3330 3727 3996 4995 5994 6660 7454 9990 11181 11988 14908 14985 18635 19980 22362 29970 33543 37270 44724 55905 59940 67086 74540 100629 111810 134172 137899 167715 201258 223620 275798 301887 335430 402516 413697 503145 551596 603774 670860 689495 827394 1006290 1207548 1241091 1378990 1509435 1654788 2012580 2068485 2482182 2757980 3018870 3723273 4136970 4964364 6037740 6205455 7446546 8273940 11169819 12410910 14893092 18616365 22339638 24821820 37232730 44679276 55849095 74465460 111698190 223396380