Search a number
-
+
23330303220 = 2235771782371
BaseRepresentation
bin10101101110100110…
…000010110011110100
32020012221002012102110
4111232212002303310
5340240024200340
614415013211020
71454101206510
oct255646026364
966187065373
1023330303220
119992391134
124631330a70
13227a639c63
1411b470d140
15918307680
hex56e982cf4

23330303220 has 96 divisors (see below), whose sum is σ = 75708573696. Its totient is φ = 5257526400.

The previous prime is 23330303197. The next prime is 23330303231. The reversal of 23330303220 is 2230303332.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361366 + ... + 421005.

It is an arithmetic number, because the mean of its divisors is an integer number (788630976).

Almost surely, 223330303220 is an apocalyptic number.

23330303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23330303220 is an abundant number, since it is smaller than the sum of its proper divisors (52378270476).

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

23330303220 is a wasteful number, since it uses less digits than its factorization.

23330303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782461 (or 782459 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 21.

Adding to 23330303220 its reverse (2230303332), we get a palindrome (25560606552).

The spelling of 23330303220 in words is "twenty-three billion, three hundred thirty million, three hundred three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 71 84 105 140 142 210 213 284 355 420 426 497 710 852 994 1065 1420 1491 1988 2130 2485 2982 4260 4970 5964 7455 9940 14910 29820 782371 1564742 2347113 3129484 3911855 4694226 5476597 7823710 9388452 10953194 11735565 15647420 16429791 21906388 23471130 27382985 32859582 46942260 54765970 55548341 65719164 82148955 109531940 111096682 164297910 166645023 222193364 277741705 328595820 333290046 388838387 555483410 666580092 777676774 833225115 1110966820 1166515161 1555353548 1666450230 1944191935 2333030322 3332900460 3888383870 4666060644 5832575805 7776767740 11665151610 23330303220