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23103340 = 22513175227
BaseRepresentation
bin101100000100…
…0011101101100
31121110202211021
41120020131230
521403301330
62143103524
7400242451
oct130103554
947422737
1023103340
111204a977
1278a1ba4
134a2bb20
1430d5828
15206567a
hex160876c

23103340 has 48 divisors (see below), whose sum is σ = 55333152. Its totient is φ = 8027136.

The previous prime is 23103337. The next prime is 23103347. The reversal of 23103340 is 4330132.

It is not an unprimeable number, because it can be changed into a prime (23103347) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1807 + ... + 7033.

It is an arithmetic number, because the mean of its divisors is an integer number (1152774).

Almost surely, 223103340 is an apocalyptic number.

23103340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23103340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27666576).

23103340 is an abundant number, since it is smaller than the sum of its proper divisors (32229812).

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

23103340 is a wasteful number, since it uses less digits than its factorization.

23103340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5266 (or 5264 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23103340 is about 4806.5933882533. The cubic root of 23103340 is about 284.8119822790.

Adding to 23103340 its reverse (4330132), we get a palindrome (27433472).

The spelling of 23103340 in words is "twenty-three million, one hundred three thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 17 20 26 34 52 65 68 85 130 170 221 260 340 442 884 1105 2210 4420 5227 10454 20908 26135 52270 67951 88859 104540 135902 177718 271804 339755 355436 444295 679510 888590 1155167 1359020 1777180 2310334 4620668 5775835 11551670 23103340