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225702624 = 2537247981
BaseRepresentation
bin11010111001111…
…11001011100000
3120201200212210110
431130333023200
5430234440444
634221331320
75410304100
oct1534771340
9521625713
10225702624
111064487a4
1263706b40
13379b6264
1421d93200
1514c34cb9
hexd73f2e0

225702624 has 72 divisors (see below), whose sum is σ = 689213448. Its totient is φ = 64485120.

The previous prime is 225702613. The next prime is 225702637. The reversal of 225702624 is 426207522.

225702624 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 225702591 and 225702600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19287 + ... + 28694.

It is an arithmetic number, because the mean of its divisors is an integer number (9572409).

Almost surely, 2225702624 is an apocalyptic number.

225702624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225702624 is an abundant number, since it is smaller than the sum of its proper divisors (463510824).

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

225702624 is a wasteful number, since it uses less digits than its factorization.

225702624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48008 (or 47993 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 225702624 is about 15023.4025440311. The cubic root of 225702624 is about 608.8526529506.

The spelling of 225702624 in words is "two hundred twenty-five million, seven hundred two thousand, six hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 84 96 98 112 147 168 196 224 294 336 392 588 672 784 1176 1568 2352 4704 47981 95962 143943 191924 287886 335867 383848 575772 671734 767696 1007601 1151544 1343468 1535392 2015202 2303088 2351069 2686936 4030404 4606176 4702138 5373872 7053207 8060808 9404276 10747744 14106414 16121616 18808552 28212828 32243232 37617104 56425656 75234208 112851312 225702624