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23054040 = 23325173767
BaseRepresentation
bin101011111110…
…0011011011000
31121101021012100
41113330123120
521400212130
62142043400
7366645642
oct127743330
947337170
1023054040
1112016929
127879560
134a12559
1430c1892
152055c60
hex15fc6d8

23054040 has 96 divisors (see below), whose sum is σ = 79354080. Its totient is φ = 5784576.

The previous prime is 23054039. The next prime is 23054041. The reversal of 23054040 is 4045032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23054039) and next prime (23054041).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23054041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4237 + ... + 8003.

It is an arithmetic number, because the mean of its divisors is an integer number (826605).

Almost surely, 223054040 is an apocalyptic number.

23054040 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 23054040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39677040).

23054040 is an abundant number, since it is smaller than the sum of its proper divisors (56300040).

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

23054040 is a wasteful number, since it uses less digits than its factorization.

23054040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3794 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 23054040 is about 4801.4622772651. The cubic root of 23054040 is about 284.6092521388.

Adding to 23054040 its reverse (4045032), we get a palindrome (27099072).

The spelling of 23054040 in words is "twenty-three million, fifty-four thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 136 153 170 180 204 255 306 340 360 408 510 612 680 765 1020 1224 1530 2040 3060 3767 6120 7534 11301 15068 18835 22602 30136 33903 37670 45204 56505 64039 67806 75340 90408 113010 128078 135612 150680 169515 192117 226020 256156 271224 320195 339030 384234 452040 512312 576351 640390 678060 768468 960585 1152702 1280780 1356120 1536936 1921170 2305404 2561560 2881755 3842340 4610808 5763510 7684680 11527020 23054040