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223879040 = 2757211259
BaseRepresentation
bin11010101100000…
…01111110000000
3120121021020022022
431112001332000
5424303112130
634114301012
75355640400
oct1526017600
9517236268
10223879040
11105412700
1262b87768
13374c8208
1421a3a800
15149c47e5
hexd581f80

223879040 has 288 divisors, whose sum is σ = 695935800. Its totient is φ = 68597760.

The previous prime is 223879003. The next prime is 223879057. The reversal of 223879040 is 40978322.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3794531 + ... + 3794589.

Almost surely, 2223879040 is an apocalyptic number.

223879040 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 223879040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347967900).

223879040 is an abundant number, since it is smaller than the sum of its proper divisors (472056760).

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

223879040 is a wasteful number, since it uses less digits than its factorization.

223879040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 223879040 is about 14962.5880114371. The cubic root of 223879040 is about 607.2084574891.

The spelling of 223879040 in words is "two hundred twenty-three million, eight hundred seventy-nine thousand, forty".