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23430225 = 3527133433
BaseRepresentation
bin101100101100…
…0010001010001
31122002101020010
41121120101101
521444231400
62154105133
7403103460
oct131302121
948071203
1023430225
1112253525
127a1b1a9
134b14850
14317c9d7
1520cc450
hex1658451

23430225 has 48 divisors (see below), whose sum is σ = 47691392. Its totient is φ = 9884160.

The previous prime is 23430223. The next prime is 23430263. The reversal of 23430225 is 52203432.

It is not a de Polignac number, because 23430225 - 21 = 23430223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (23430221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5109 + ... + 8541.

Almost surely, 223430225 is an apocalyptic number.

23430225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23430225 is an abundant number, since it is smaller than the sum of its proper divisors (24261167).

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

23430225 is a wasteful number, since it uses less digits than its factorization.

23430225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466 (or 3461 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 23430225 is about 4840.4777656756. The cubic root of 23430225 is about 286.1489476324.

Adding to 23430225 its reverse (52203432), we get a palindrome (75633657).

The spelling of 23430225 in words is "twenty-three million, four hundred thirty thousand, two hundred twenty-five".

Divisors: 1 3 5 7 13 15 21 25 35 39 65 75 91 105 175 195 273 325 455 525 975 1365 2275 3433 6825 10299 17165 24031 44629 51495 72093 85825 120155 133887 223145 257475 312403 360465 600775 669435 937209 1115725 1562015 1802325 3347175 4686045 7810075 23430225