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23001460 = 2251150073
BaseRepresentation
bin101011110111…
…1100101110100
31121021121001221
41113233211310
521342021320
62141000124
7366336436
oct127574564
947247057
1023001460
1111a90379
127853044
1349c4641
1430aa656
1520453aa
hex15ef974

23001460 has 12 divisors (see below), whose sum is σ = 48303108. Its totient is φ = 9200576.

The previous prime is 23001439. The next prime is 23001467. The reversal of 23001460 is 6410032.

It can be written as a sum of positive squares in 2 ways, for example, as 11209104 + 11792356 = 3348^2 + 3434^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575017 + ... + 575056.

It is an arithmetic number, because the mean of its divisors is an integer number (4025259).

Almost surely, 223001460 is an apocalyptic number.

23001460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23001460 is an abundant number, since it is smaller than the sum of its proper divisors (25301648).

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

23001460 is a wasteful number, since it uses less digits than its factorization.

23001460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150082 (or 1150080 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23001460 is about 4795.9837364195. The cubic root of 23001460 is about 284.3927153155.

Adding to 23001460 its reverse (6410032), we get a palindrome (29411492).

The spelling of 23001460 in words is "twenty-three million, one thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 1150073 2300146 4600292 5750365 11500730 23001460