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226979420 = 225109104119
BaseRepresentation
bin11011000011101…
…10111001011100
3120211002202020012
431201312321130
5431101320140
634304542352
75424202403
oct1541667134
9524082205
10226979420
1110713aaa8
12640219b8
1338042465
142220663a
1514dd8265
hexd876e5c

226979420 has 24 divisors (see below), whose sum is σ = 481034400. Its totient is φ = 89957952.

The previous prime is 226979383. The next prime is 226979429. The reversal of 226979420 is 24979622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226979429) 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, 49880 + ... + 54239.

It is an arithmetic number, because the mean of its divisors is an integer number (20043100).

Almost surely, 2226979420 is an apocalyptic number.

226979420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226979420 is an abundant number, since it is smaller than the sum of its proper divisors (254054980).

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

226979420 is a wasteful number, since it uses less digits than its factorization.

226979420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104237 (or 104235 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 226979420 is about 15065.8361865513. The cubic root of 226979420 is about 609.9985846066.

The spelling of 226979420 in words is "two hundred twenty-six million, nine hundred seventy-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 104119 208238 416476 520595 1041190 2082380 11348971 22697942 45395884 56744855 113489710 226979420