Search a number
-
+
21200295410 = 257271609379
BaseRepresentation
bin10011101111101000…
…101101010111110010
32000201111002121000022
4103233220231113302
5321404233423120
613423403523442
71350235352300
oct235750552762
960644077008
1021200295410
118a9a0177a8
124137b29582
131ccb2736c8
141051891270
15841314025
hex4efa2d5f2

21200295410 has 48 divisors (see below), whose sum is σ = 45016119360. Its totient is φ = 7166285280.

The previous prime is 21200295397. The next prime is 21200295421. The reversal of 21200295410 is 1459200212.

It is a self number, because there is not a number n which added to its sum of digits gives 21200295410.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269900 + ... + 339479.

It is an arithmetic number, because the mean of its divisors is an integer number (937835820).

Almost surely, 221200295410 is an apocalyptic number.

21200295410 is an abundant number, since it is smaller than the sum of its proper divisors (23815823950).

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

21200295410 is a wasteful number, since it uses less digits than its factorization.

21200295410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609471 (or 609464 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 21200295410 its reverse (1459200212), we get a palindrome (22659495622).

The spelling of 21200295410 in words is "twenty-one billion, two hundred million, two hundred ninety-five thousand, four hundred ten".

Divisors: 1 2 5 7 10 14 35 49 70 71 98 142 245 355 490 497 710 994 2485 3479 4970 6958 17395 34790 609379 1218758 3046895 4265653 6093790 8531306 21328265 29859571 42656530 43265909 59719142 86531818 149297855 216329545 298595710 302861363 432659090 605722726 1514306815 2120029541 3028613630 4240059082 10600147705 21200295410