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223742253 = 37172632383
BaseRepresentation
bin11010101011000…
…00100100101101
3120121000021200010
431111200210231
5424234223003
634111323433
75354530530
oct1525404455
9517007603
10223742253
11105329959
1262b20579
133747ab87
1421a02a17
1514999003
hexd56092d

223742253 has 32 divisors (see below), whose sum is σ = 362520576. Its totient is φ = 119824128.

The previous prime is 223742249. The next prime is 223742257. The reversal of 223742253 is 352247322.

It is an interprime number because it is at equal distance from previous prime (223742249) and next prime (223742257).

It is not a de Polignac number, because 223742253 - 22 = 223742249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223742253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223742257) 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 31 ways as a sum of consecutive naturals, for example, 92700 + ... + 95082.

It is an arithmetic number, because the mean of its divisors is an integer number (11328768).

Almost surely, 2223742253 is an apocalyptic number.

It is an amenable number.

223742253 is a deficient number, since it is larger than the sum of its proper divisors (138778323).

223742253 is a wasteful number, since it uses less digits than its factorization.

223742253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673.

The product of its digits is 20160, while the sum is 30.

The square root of 223742253 is about 14958.0163457592. The cubic root of 223742253 is about 607.0847669688.

Adding to 223742253 its reverse (352247322), we get a palindrome (575989575).

The spelling of 223742253 in words is "two hundred twenty-three million, seven hundred forty-two thousand, two hundred fifty-three".

Divisors: 1 3 7 17 21 51 119 263 357 789 1841 2383 4471 5523 7149 13413 16681 31297 40511 50043 93891 121533 283577 626729 850731 1880187 4387103 10654393 13161309 31963179 74580751 223742253