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225738752 = 215832
BaseRepresentation
bin11010111010010…
…00000000000000
3120201202201100112
431131020000000
5430242120002
634222210452
75410514321
oct1535100000
9521681315
10225738752
11106472958
1263723a28
13379c9835
1421da2448
1514c40852
hexd748000

225738752 has 48 divisors (see below), whose sum is σ = 456975555. Its totient is φ = 111509504.

The previous prime is 225738731. The next prime is 225738757. The reversal of 225738752 is 257837522.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

225738752 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 112869376 + 112869376 = 10624^2 + 10624^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=10624.

It is a Duffinian number.

Its product of digits (235200) is a multiple of the sum of its prime factors (196).

It is not an unprimeable number, because it can be changed into a prime (225738757) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2719703 + ... + 2719785.

Almost surely, 2225738752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225738752

225738752 is an abundant number, since it is smaller than the sum of its proper divisors (231236803).

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

225738752 is an frugal number, since it uses more digits than its factorization.

225738752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 85 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 225738752 is about 15024.6048866518. The cubic root of 225738752 is about 608.8851373685.

The spelling of 225738752 in words is "two hundred twenty-five million, seven hundred thirty-eight thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 83 128 166 256 332 512 664 1024 1328 2048 2656 4096 5312 6889 8192 10624 13778 16384 21248 27556 32768 42496 55112 84992 110224 169984 220448 339968 440896 679936 881792 1359872 1763584 2719744 3527168 7054336 14108672 28217344 56434688 112869376 225738752