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225085693 = 7434911523
BaseRepresentation
bin11010110101010…
…00100011111101
3120200112112112011
431122220203331
5430110220233
634200211221
75402124340
oct1532504375
9520475464
10225085693
11106067238
1263469b11
133782b501
1421c72457
1514b620cd
hexd6a88fd

225085693 has 16 divisors (see below), whose sum is σ = 263932416. Its totient is φ = 187936560.

The previous prime is 225085681. The next prime is 225085739. The reversal of 225085693 is 396580522.

It is not a de Polignac number, because 225085693 - 217 = 224954621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225085633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147030 + ... + 148552.

It is an arithmetic number, because the mean of its divisors is an integer number (16495776).

Almost surely, 2225085693 is an apocalyptic number.

It is an amenable number.

225085693 is a deficient number, since it is larger than the sum of its proper divisors (38846723).

225085693 is a wasteful number, since it uses less digits than its factorization.

225085693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 225085693 is about 15002.8561614114. The cubic root of 225085693 is about 608.2974048880.

The spelling of 225085693 in words is "two hundred twenty-five million, eighty-five thousand, six hundred ninety-three".

Divisors: 1 7 43 301 491 1523 3437 10661 21113 65489 147791 458423 747793 5234551 32155099 225085693