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225498072 = 23323607673
BaseRepresentation
bin11010111000011…
…01001111011000
3120201022111012110
431130031033120
5430211414242
634213112320
75405462532
oct1534151730
9521274173
10225498072
11106319048
12636286a0
1337944117
1421d3c852
1514be439c
hexd70d3d8

225498072 has 64 divisors (see below), whose sum is σ = 590100480. Its totient is φ = 71672832.

The previous prime is 225498071. The next prime is 225498089. The reversal of 225498072 is 270894522.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 225498072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225498071) 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, 334728 + ... + 335400.

It is an arithmetic number, because the mean of its divisors is an integer number (9220320).

Almost surely, 2225498072 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 225498072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295050240).

225498072 is an abundant number, since it is smaller than the sum of its proper divisors (364602408).

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

225498072 is a wasteful number, since it uses less digits than its factorization.

225498072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 225498072 is about 15016.5932221659. The cubic root of 225498072 is about 608.6686650283.

The spelling of 225498072 in words is "two hundred twenty-five million, four hundred ninety-eight thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 607 673 1214 1346 1821 2019 2428 2692 3642 4038 4856 5384 7284 8076 13961 14568 15479 16152 27922 30958 41883 46437 55844 61916 83766 92874 111688 123832 167532 185748 335064 371496 408511 817022 1225533 1634044 2451066 3268088 4902132 9395753 9804264 18791506 28187259 37583012 56374518 75166024 112749036 225498072