Search a number
-
+
23440003130 = 2529531525049
BaseRepresentation
bin10101110101001000…
…100001000000111010
32020111120111112102002
4111311020201000322
5341001120100010
614433532341002
71456602511355
oct256510410072
966446445362
1023440003130
119a392a8315
124662014762
13229729884b
1411c510729c
15922c761a5
hex57522103a

23440003130 has 32 divisors (see below), whose sum is σ = 44470458000. Its totient is φ = 8881879552.

The previous prime is 23440003129. The next prime is 23440003199. The reversal of 23440003130 is 3130004432.

It can be written as a sum of positive squares in 8 ways, for example, as 19784954281 + 3655048849 = 140659^2 + 60457^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747155 + ... + 777894.

Almost surely, 223440003130 is an apocalyptic number.

23440003130 is a deficient number, since it is larger than the sum of its proper divisors (21030454870).

23440003130 is a wasteful number, since it uses less digits than its factorization.

23440003130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525138.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23440003130 its reverse (3130004432), we get a palindrome (26570007562).

The spelling of 23440003130 in words is "twenty-three billion, four hundred forty million, three thousand, one hundred thirty".

Divisors: 1 2 5 10 29 53 58 106 145 265 290 530 1537 3074 7685 15370 1525049 3050098 7625245 15250490 44226421 80827597 88452842 161655194 221132105 404137985 442264210 808275970 2344000313 4688000626 11720001565 23440003130