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22823125 = 5413532
BaseRepresentation
bin101011100010…
…0000011010101
31120221112102221
41113010003111
521320320000
62133102341
7364664503
oct127040325
946845387
1022823125
1111979396
1277879b1
134961410
143061673
15200c61a
hex15c40d5

22823125 has 30 divisors (see below), whose sum is σ = 31304042. Its totient is φ = 16536000.

The previous prime is 22823113. The next prime is 22823131. The reversal of 22823125 is 52132822.

It can be written as a sum of positive squares in 15 ways, for example, as 22363441 + 459684 = 4729^2 + 678^2 .

It is not a de Polignac number, because 22823125 - 211 = 22821077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22823125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 430599 + ... + 430651.

Almost surely, 222823125 is an apocalyptic number.

22823125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22823125 is a deficient number, since it is larger than the sum of its proper divisors (8480917).

22823125 is an frugal number, since it uses more digits than its factorization.

22823125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 71 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 22823125 is about 4777.3554399898. The cubic root of 22823125 is about 283.6558227309.

Adding to 22823125 its reverse (52132822), we get a palindrome (74955947).

The spelling of 22823125 in words is "twenty-two million, eight hundred twenty-three thousand, one hundred twenty-five".

Divisors: 1 5 13 25 53 65 125 265 325 625 689 1325 1625 2809 3445 6625 8125 14045 17225 33125 36517 70225 86125 182585 351125 430625 912925 1755625 4564625 22823125