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20212001304 = 23311831635659
BaseRepresentation
bin10010110100101110…
…101010101000011000
31221011121110001100220
4102310232222220120
5312343233020204
613141341200040
71313605114335
oct226456525030
957147401326
1020212001304
118632169810
123b00b60020
131ba15a46b1
14d9a50d98c
157d46961d9
hex4b4baaa18

20212001304 has 128 divisors (see below), whose sum is σ = 56139955200. Its totient is φ = 6012869760.

The previous prime is 20212001297. The next prime is 20212001311. The reversal of 20212001304 is 40310021202.

It is an interprime number because it is at equal distance from previous prime (20212001297) and next prime (20212001311).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3568827 + ... + 3574485.

It is an arithmetic number, because the mean of its divisors is an integer number (438593400).

Almost surely, 220212001304 is an apocalyptic number.

20212001304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212001304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28069977600).

20212001304 is an abundant number, since it is smaller than the sum of its proper divisors (35927953896).

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

20212001304 is a wasteful number, since it uses less digits than its factorization.

20212001304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925 (or 5921 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20212001304 its reverse (40310021202), we get a palindrome (60522022506).

The spelling of 20212001304 in words is "twenty billion, two hundred twelve million, one thousand, three hundred four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 83 88 132 163 166 249 264 326 332 489 498 652 664 913 978 996 1304 1793 1826 1956 1992 2739 3586 3652 3912 5379 5478 5659 7172 7304 10758 10956 11318 13529 14344 16977 21516 21912 22636 27058 33954 40587 43032 45272 54116 62249 67908 81174 108232 124498 135816 148819 162348 186747 248996 297638 324696 373494 446457 469697 497992 595276 746988 892914 922417 939394 1190552 1409091 1493976 1785828 1844834 1878788 2767251 2818182 3571656 3689668 3757576 5166667 5534502 5636364 7379336 10146587 10333334 11069004 11272728 15500001 20293174 20666668 22138008 30439761 31000002 40586348 41333336 60879522 62000004 76560611 81172696 121759044 124000008 153121222 229681833 243518088 306242444 459363666 612484888 842166721 918727332 1684333442 1837454664 2526500163 3368666884 5053000326 6737333768 10106000652 20212001304