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20002105410 = 23571919725447
BaseRepresentation
bin10010101000001101…
…111110100001000010
31220121222111020022220
4102220031332201002
5311431014333120
613104442311510
71305446043060
oct225015764102
956558436286
1020002105410
118534737931
123a627b8596
131b69c64041
14d7a6b3030
157c1034b40
hex4a837e842

20002105410 has 128 divisors (see below), whose sum is σ = 58045870080. Its totient is φ = 4309127424.

The previous prime is 20002105399. The next prime is 20002105433. The reversal of 20002105410 is 1450120002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20002105410.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 773307 + ... + 798753.

It is an arithmetic number, because the mean of its divisors is an integer number (453483360).

Almost surely, 220002105410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002105410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29022935040).

20002105410 is an abundant number, since it is smaller than the sum of its proper divisors (38043764670).

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

20002105410 is a wasteful number, since it uses less digits than its factorization.

20002105410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25680.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 20002105410 its reverse (1450120002), we get a palindrome (21452225412).

The spelling of 20002105410 in words is "twenty billion, two million, one hundred five thousand, four hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 57 70 95 105 114 133 190 197 210 266 285 394 399 570 591 665 798 985 1182 1330 1379 1970 1995 2758 2955 3743 3990 4137 5910 6895 7486 8274 11229 13790 18715 20685 22458 25447 26201 37430 41370 50894 52402 56145 76341 78603 112290 127235 131005 152682 157206 178129 254470 262010 356258 381705 393015 483493 534387 763410 786030 890645 966986 1068774 1450479 1781290 2417465 2671935 2900958 3384451 4834930 5013059 5343870 6768902 7252395 10026118 10153353 14504790 15039177 16922255 20306706 25065295 30078354 33844510 35091413 50130590 50766765 70182826 75195885 95248121 101533530 105274239 150391770 175457065 190496242 210548478 285744363 350914130 476240605 526371195 571488726 666736847 952481210 1052742390 1333473694 1428721815 2000210541 2857443630 3333684235 4000421082 6667368470 10001052705 20002105410