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2020899012 = 2231161419599
BaseRepresentation
bin111100001110100…
…0111100011000100
312012211200022021120
41320131013203010
513114322232022
6532310513540
7101036233566
oct17035074304
95184608246
102020899012
11947821380
124849658b0
132628b3a42
14152579336
15bc63ed5c
hex787478c4

2020899012 has 96 divisors (see below), whose sum is σ = 5249664000. Its totient is φ = 599913600.

The previous prime is 2020899007. The next prime is 2020899019. The reversal of 2020899012 is 2109980202.

It is a happy number.

It is a super-2 number, since 2×20208990122 = 8168065633405152288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2020899019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3373489 + ... + 3374087.

It is an arithmetic number, because the mean of its divisors is an integer number (54684000).

Almost surely, 22020899012 is an apocalyptic number.

2020899012 is a gapful number since it is divisible by the number (22) 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 2020899012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2624832000).

2020899012 is an abundant number, since it is smaller than the sum of its proper divisors (3228764988).

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

2020899012 is a wasteful number, since it uses less digits than its factorization.

2020899012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 2020899012 is about 44954.4103731770. The cubic root of 2020899012 is about 1264.2943695973.

The spelling of 2020899012 in words is "two billion, twenty million, eight hundred ninety-nine thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 61 66 122 132 183 244 366 419 599 671 732 838 1198 1257 1342 1676 1797 2013 2396 2514 2684 3594 4026 4609 5028 6589 7188 8052 9218 13178 13827 18436 19767 25559 26356 27654 36539 39534 51118 55308 73078 76677 79068 102236 109617 146156 153354 219234 250981 281149 306708 401929 438468 501962 562298 752943 803858 843447 1003924 1124596 1205787 1505886 1607716 1686894 2411574 2760791 3011772 3373788 4823148 5521582 8282373 11043164 15309841 16564746 30619682 33129492 45929523 61239364 91859046 168408251 183718092 336816502 505224753 673633004 1010449506 2020899012