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33210442020 = 22357295326777
BaseRepresentation
bin11110111011011111…
…110010000100100100
310011201111022020220010
4132323133302010210
51021003333121040
623131235010220
72253662046060
oct367337620444
9104644266803
1033210442020
11130a24796a8
12652a139970
13319354b732
141870990aa0
15ce58dae80
hex7bb7f2124

33210442020 has 96 divisors (see below), whose sum is σ = 106313372928. Its totient is φ = 7588104192.

The previous prime is 33210442007. The next prime is 33210442063. The reversal of 33210442020 is 2024401233.

It is a super-2 number, since 2×332104420202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1226872 + ... + 1253648.

It is an arithmetic number, because the mean of its divisors is an integer number (1107430968).

Almost surely, 233210442020 is an apocalyptic number.

33210442020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33210442020 is an abundant number, since it is smaller than the sum of its proper divisors (73102930908).

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

33210442020 is a wasteful number, since it uses less digits than its factorization.

33210442020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29749 (or 29747 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 33210442020 its reverse (2024401233), we get a palindrome (35234843253).

The spelling of 33210442020 in words is "thirty-three billion, two hundred ten million, four hundred forty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 2953 5906 8859 11812 14765 17718 20671 26777 29530 35436 41342 44295 53554 59060 62013 80331 82684 88590 103355 107108 124026 133885 160662 177180 187439 206710 248052 267770 310065 321324 374878 401655 413420 535540 562317 620130 749756 803310 937195 1124634 1240260 1606620 1874390 2249268 2811585 3748780 5623170 11246340 79072481 158144962 237217443 316289924 395362405 474434886 553507367 790724810 948869772 1107014734 1186087215 1581449620 1660522101 2214029468 2372174430 2767536835 3321044202 4744348860 5535073670 6642088404 8302610505 11070147340 16605221010 33210442020