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220256254 = 2421261587
BaseRepresentation
bin11010010000011…
…01011111111110
3120100110011210001
431020031133332
5422341200004
633504504514
75313101341
oct1510153776
9510404701
10220256254
11103368869
126191b13a
133682a25a
1421376458
151450b1a4
hexd20d7fe

220256254 has 8 divisors (see below), whose sum is σ = 331170408. Its totient is φ = 109866120.

The previous prime is 220256249. The next prime is 220256279. The reversal of 220256254 is 452652022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2202562542 = 97025634852225032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129952 + ... + 131635.

It is an arithmetic number, because the mean of its divisors is an integer number (41396301).

Almost surely, 2220256254 is an apocalyptic number.

220256254 is a deficient number, since it is larger than the sum of its proper divisors (110914154).

220256254 is a wasteful number, since it uses less digits than its factorization.

220256254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262010.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 220256254 is about 14841.0327807737. The cubic root of 220256254 is about 603.9153701434.

The spelling of 220256254 in words is "two hundred twenty million, two hundred fifty-six thousand, two hundred fifty-four".

Divisors: 1 2 421 842 261587 523174 110128127 220256254