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21107417130 = 2335292695711
BaseRepresentation
bin10011101010000110…
…011010000000101010
32000111000022212222000
4103222012122000222
5321211444322010
613410245111430
71345030041162
oct235206320052
960430285860
1021107417130
118a5164a998
1241109b8576
131cb4c54647
1410433d55a2
158380b97c0
hex4ea19a02a

21107417130 has 64 divisors (see below), whose sum is σ = 58227379200. Its totient is φ = 5434551360.

The previous prime is 21107417119. The next prime is 21107417137. The reversal of 21107417130 is 3171470112.

21107417130 is a `hidden beast` number, since 2 + 110 + 7 + 417 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21107417094 and 21107417103.

It is not an unprimeable number, because it can be changed into a prime (21107417137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1340026 + ... + 1355685.

It is an arithmetic number, because the mean of its divisors is an integer number (909802800).

Almost surely, 221107417130 is an apocalyptic number.

21107417130 is an abundant number, since it is smaller than the sum of its proper divisors (37119962070).

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

21107417130 is a wasteful number, since it uses less digits than its factorization.

21107417130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695756 (or 2695750 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

Adding to 21107417130 its reverse (3171470112), we get a palindrome (24278887242).

The spelling of 21107417130 in words is "twenty-one billion, one hundred seven million, four hundred seventeen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 29 30 45 54 58 87 90 135 145 174 261 270 290 435 522 783 870 1305 1566 2610 3915 7830 2695711 5391422 8087133 13478555 16174266 24261399 26957110 40435665 48522798 72784197 78175619 80871330 121306995 145568394 156351238 234526857 242613990 363920985 390878095 469053714 703580571 727841970 781756190 1172634285 1407161142 2110741713 2345268570 3517902855 4221483426 7035805710 10553708565 21107417130