Search a number
-
+
20108022703870 = 25235316211017613
BaseRepresentation
bin1001001001001110000111…
…00011001110011011111110
32122012022022200020102122211
410210213003203032123332
510113422212303010440
6110433255331331034
74143520355610403
oct444470343163376
978168280212584
1020108022703870
116452845668312
1223090a0150a7a
13b2b241c5561a
144d733a9b62aa
1524d0c85a2eea
hex1249c38ce6fe

20108022703870 has 64 divisors (see below), whose sum is σ = 38504494813824. Its totient is φ = 7543679869440.

The previous prime is 20108022703843. The next prime is 20108022703871. The reversal of 20108022703870 is 7830722080102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20108022703871) 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, 19251184 + ... + 20268796.

It is an arithmetic number, because the mean of its divisors is an integer number (601632731466).

Almost surely, 220108022703870 is an apocalyptic number.

20108022703870 is a deficient number, since it is larger than the sum of its proper divisors (18396472109954).

20108022703870 is a wasteful number, since it uses less digits than its factorization.

20108022703870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019317.

The product of its (nonzero) digits is 75264, while the sum is 40.

Adding to 20108022703870 its reverse (7830722080102), we get a palindrome (27938744783972).

The spelling of 20108022703870 in words is "twenty trillion, one hundred eight billion, twenty-two million, seven hundred three thousand, eight hundred seventy".

Divisors: 1 2 5 10 23 46 53 106 115 230 265 530 1219 1621 2438 3242 6095 8105 12190 16210 37283 74566 85913 171826 186415 372830 429565 859130 1017613 1975999 2035226 3951998 5088065 9879995 10176130 19759990 23405099 46810198 53933489 107866978 117025495 234050990 269667445 539334890 1240470247 1649550673 2480940494 3299101346 6202351235 8247753365 12404702470 16495506730 37939665479 75879330958 87426185669 174852371338 189698327395 379396654790 437130928345 874261856690 2010802270387 4021604540774 10054011351935 20108022703870