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225706830 = 2357523561
BaseRepresentation
bin11010111010000…
…00001101001110
3120201201002120020
431131000031032
5430240104310
634221403010
75410322256
oct1535001516
9521632506
10225706830
11106450978
1263709466
13379b814b
1421d94966
1514c36170
hexd74034e

225706830 has 16 divisors (see below), whose sum is σ = 541696464. Its totient is φ = 60188480.

The previous prime is 225706829. The next prime is 225706847. The reversal of 225706830 is 38607522.

It is a junction number, because it is equal to n+sod(n) for n = 225706791 and 225706800.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3761751 + ... + 3761810.

It is an arithmetic number, because the mean of its divisors is an integer number (33856029).

Almost surely, 2225706830 is an apocalyptic number.

225706830 is an abundant number, since it is smaller than the sum of its proper divisors (315989634).

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

225706830 is a wasteful number, since it uses less digits than its factorization.

225706830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523571.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 225706830 is about 15023.5425249839. The cubic root of 225706830 is about 608.8564349453.

The spelling of 225706830 in words is "two hundred twenty-five million, seven hundred six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 7523561 15047122 22570683 37617805 45141366 75235610 112853415 225706830