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225987254 = 21983137523
BaseRepresentation
bin11010111100001…
…00101010110110
3120202020100020022
431132010222312
5430323043004
634231405142
75412600653
oct1536045266
9522210208
10225987254
11106622629
12638237b2
1337a8598c
1422028c2a
1514c8e2be
hexd784ab6

225987254 has 32 divisors (see below), whose sum is σ = 364452480. Its totient is φ = 104784192.

The previous prime is 225987211. The next prime is 225987263. The reversal of 225987254 is 452789522.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431837 + ... + 432359.

It is an arithmetic number, because the mean of its divisors is an integer number (11389140).

Almost surely, 2225987254 is an apocalyptic number.

225987254 is a deficient number, since it is larger than the sum of its proper divisors (138465226).

225987254 is a wasteful number, since it uses less digits than its factorization.

225987254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 403200, while the sum is 44.

The square root of 225987254 is about 15032.8724467415. The cubic root of 225987254 is about 609.1084835813.

The spelling of 225987254 in words is "two hundred twenty-five million, nine hundred eighty-seven thousand, two hundred fifty-four".

Divisors: 1 2 19 38 83 137 166 274 523 1046 1577 2603 3154 5206 9937 11371 19874 22742 43409 71651 86818 143302 216049 432098 824771 1361369 1649542 2722738 5947033 11894066 112993627 225987254