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213853026 = 23279712743
BaseRepresentation
bin11001011111100…
…10001101100010
3112220101212012110
430233302031202
5414221244101
633115340150
75204502132
oct1457621542
9486355173
10213853026
11aa794a42
125b751656
13353c786a
142058aac2
1513b93cd6
hexcbf2362

213853026 has 16 divisors (see below), whose sum is σ = 427892544. Its totient is φ = 71253264.

The previous prime is 213853021. The next prime is 213853043. The reversal of 213853026 is 620358312.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213852984 and 213853002.

It is not an unprimeable number, because it can be changed into a prime (213853021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10411 + ... + 23153.

It is an arithmetic number, because the mean of its divisors is an integer number (26743284).

Almost surely, 2213853026 is an apocalyptic number.

213853026 is an abundant number, since it is smaller than the sum of its proper divisors (214039518).

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

213853026 is a wasteful number, since it uses less digits than its factorization.

213853026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15545.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 213853026 is about 14623.7145076072. The cubic root of 213853026 is about 598.0054379956.

The spelling of 213853026 in words is "two hundred thirteen million, eight hundred fifty-three thousand, twenty-six".

Divisors: 1 2 3 6 2797 5594 8391 12743 16782 25486 38229 76458 35642171 71284342 106926513 213853026