Search a number
-
+
23230211240 = 235883657707
BaseRepresentation
bin10101101000101000…
…001110010010101000
32012221221202000001002
4111220220032102220
5340033413224430
614401040014132
71451444352245
oct255050162250
965857660032
1023230211240
119940937595
124603901348
132262993632
1411a52d65cc
1590e635845
hex568a0e4a8

23230211240 has 32 divisors (see below), whose sum is σ = 52327248480. Its totient is φ = 9281547072.

The previous prime is 23230211203. The next prime is 23230211261. The reversal of 23230211240 is 4211203232.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293534 + ... + 364173.

It is an arithmetic number, because the mean of its divisors is an integer number (1635226515).

Almost surely, 223230211240 is an apocalyptic number.

23230211240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23230211240 is an abundant number, since it is smaller than the sum of its proper divisors (29097037240).

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

23230211240 is a wasteful number, since it uses less digits than its factorization.

23230211240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658601 (or 658597 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23230211240 its reverse (4211203232), we get a palindrome (27441414472).

The spelling of 23230211240 in words is "twenty-three billion, two hundred thirty million, two hundred eleven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 883 1766 3532 4415 7064 8830 17660 35320 657707 1315414 2630828 3288535 5261656 6577070 13154140 26308280 580755281 1161510562 2323021124 2903776405 4646042248 5807552810 11615105620 23230211240