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223489368 = 23341931787
BaseRepresentation
bin11010101001000…
…10110101011000
3120120112102210000
431110202311120
5424203124433
634102053000
75352425334
oct1524426530
9516472700
10223489368
11105176963
1262a1a160
13373bca3b
14219787c4
1514949113
hexd522d58

223489368 has 80 divisors (see below), whose sum is σ = 629572680. Its totient is φ = 74068992.

The previous prime is 223489363. The next prime is 223489373. The reversal of 223489368 is 863984322.

It is an interprime number because it is at equal distance from previous prime (223489363) and next prime (223489373).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223489363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 124171 + ... + 125957.

Almost surely, 2223489368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223489368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314786340).

223489368 is an abundant number, since it is smaller than the sum of its proper divisors (406083312).

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

223489368 is a wasteful number, since it uses less digits than its factorization.

223489368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998 (or 1985 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 223489368 is about 14949.5607962241. The cubic root of 223489368 is about 606.8559612705.

The spelling of 223489368 in words is "two hundred twenty-three million, four hundred eighty-nine thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 193 216 324 386 579 648 772 1158 1544 1737 1787 2316 3474 3574 4632 5211 5361 6948 7148 10422 10722 13896 14296 15633 16083 20844 21444 31266 32166 41688 42888 48249 62532 64332 96498 125064 128664 144747 192996 289494 344891 385992 578988 689782 1034673 1157976 1379564 2069346 2759128 3104019 4138692 6208038 8277384 9312057 12416076 18624114 24832152 27936171 37248228 55872342 74496456 111744684 223489368