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23403422240 = 2551129458531
BaseRepresentation
bin10101110010111100…
…111110001000100000
32020102000200000212022
4111302330332020200
5340412234002430
614430144321012
71455646543502
oct256274761040
966360600768
1023403422240
119a1a692580
124651913168
13228c82b353
1411c0303d72
1591e94c4e5
hex572f3e220

23403422240 has 96 divisors (see below), whose sum is σ = 62397034560. Its totient is φ = 8216857600.

The previous prime is 23403422227. The next prime is 23403422243. The reversal of 23403422240 is 4222430432.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23403422243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178226 + ... + 280305.

It is an arithmetic number, because the mean of its divisors is an integer number (649969110).

Almost surely, 223403422240 is an apocalyptic number.

23403422240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23403422240 is an abundant number, since it is smaller than the sum of its proper divisors (38993612320).

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

23403422240 is a wasteful number, since it uses less digits than its factorization.

23403422240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458586 (or 458578 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 23403422240 its reverse (4222430432), we get a palindrome (27625852672).

The spelling of 23403422240 in words is "twenty-three billion, four hundred three million, four hundred twenty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 29 32 40 44 55 58 80 88 110 116 145 160 176 220 232 290 319 352 440 464 580 638 880 928 1160 1276 1595 1760 2320 2552 3190 4640 5104 6380 10208 12760 25520 51040 458531 917062 1834124 2292655 3668248 4585310 5043841 7336496 9170620 10087682 13297399 14672992 18341240 20175364 25219205 26594798 36682480 40350728 50438410 53189596 66486995 73364960 80701456 100876820 106379192 132973990 146271389 161402912 201753640 212758384 265947980 292542778 403507280 425516768 531895960 585085556 731356945 807014560 1063791920 1170171112 1462713890 2127583840 2340342224 2925427780 4680684448 5850855560 11701711120 23403422240