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20301303204 = 223271356910891
BaseRepresentation
bin10010111010000011…
…010100110110100100
31221101211111001112200
4102322003110312210
5313034113200304
613154251214500
71316041141620
oct227203246644
957354431480
1020301303204
118678613636
123b26a47430
131bb6c40960
14da8318180
157dc435e39
hex4ba0d4da4

20301303204 has 144 divisors (see below), whose sum is σ = 63276420480. Its totient is φ = 5344289280.

The previous prime is 20301303181. The next prime is 20301303271. The reversal of 20301303204 is 40230310302.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1858599 + ... + 1869489.

Almost surely, 220301303204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20301303204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31638210240).

20301303204 is an abundant number, since it is smaller than the sum of its proper divisors (42975117276).

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

20301303204 is a wasteful number, since it uses less digits than its factorization.

20301303204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11490 (or 11485 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20301303204 its reverse (40230310302), we get a palindrome (60531613506).

The spelling of 20301303204 in words is "twenty billion, three hundred one million, three hundred three thousand, two hundred four".

Divisors: 1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 182 234 252 273 364 468 546 569 819 1092 1138 1638 1707 2276 3276 3414 3983 5121 6828 7397 7966 10242 10891 11949 14794 15932 20484 21782 22191 23898 29588 32673 35847 43564 44382 47796 51779 65346 66573 71694 76237 88764 98019 103558 130692 133146 141583 143388 152474 155337 196038 207116 228711 266292 283166 304948 310674 392076 424749 457422 466011 566332 621348 686133 849498 914844 932022 991081 1274247 1372266 1698996 1864044 1982162 2548494 2744532 2973243 3964324 5096988 5946486 6196979 8919729 11892972 12393958 17839458 18590937 24787916 35678916 37181874 43378853 55772811 74363748 80560727 86757706 111545622 130136559 161121454 173515412 223091244 241682181 260273118 322242908 390409677 483364362 520546236 563925089 725046543 780819354 966728724 1127850178 1450093086 1561638708 1691775267 2255700356 2900186172 3383550534 5075325801 6767101068 10150651602 20301303204