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20002002210 = 23252316359281
BaseRepresentation
bin10010101000001101…
…100101010100100010
31220121222021222202200
4102220031211110202
5311431003032320
613104440154030
71305445133151
oct225015452442
956558258680
1020002002210
118534677343
123a62768916
131b69c29088
14d7a687598
157c1014290
hex4a8365522

20002002210 has 96 divisors (see below), whose sum is σ = 54600144768. Its totient is φ = 5070574080.

The previous prime is 20002002203. The next prime is 20002002253. The reversal of 20002002210 is 1220020002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20002002192 and 20002002201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 307770 + ... + 367050.

It is an arithmetic number, because the mean of its divisors is an integer number (568751508).

Almost surely, 220002002210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002002210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27300072384).

20002002210 is an abundant number, since it is smaller than the sum of its proper divisors (34598142558).

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

20002002210 is a wasteful number, since it uses less digits than its factorization.

20002002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59480 (or 59477 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20002002210 its reverse (1220020002), we get a palindrome (21222022212).

The spelling of 20002002210 in words is "twenty billion, two million, two thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 163 207 230 326 345 414 489 690 815 978 1035 1467 1630 2070 2445 2934 3749 4890 7335 7498 11247 14670 18745 22494 33741 37490 56235 59281 67482 112470 118562 168705 177843 296405 337410 355686 533529 592810 889215 1067058 1363463 1778430 2667645 2726926 4090389 5335290 6817315 8180778 9662803 12271167 13634630 19325606 20451945 24542334 28988409 40903890 48314015 57976818 61355835 86965227 96628030 122711670 144942045 173930454 222244469 289884090 434826135 444488938 666733407 869652270 1111222345 1333466814 2000200221 2222444690 3333667035 4000400442 6667334070 10001001105 20002002210