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2031021201320 = 235103671973369
BaseRepresentation
bin11101100011100010010…
…011000001011110101000
321012011102100201011012022
4131203202103001132220
5231234012411420240
64153012133004012
7266510412236156
oct35434223013650
97164370634168
102031021201320
11713395579551
12289760a83608
131196a837a7b7
14704327a43d6
1537c715c49b5
hex1d8e24c17a8

2031021201320 has 64 divisors (see below), whose sum is σ = 4614914304000. Its totient is φ = 804390317568.

The previous prime is 2031021201317. The next prime is 2031021201353. The reversal of 2031021201320 is 231021201302.

It is a super-2 number, since 2×20310212013202 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27645596 + ... + 27718964.

It is an arithmetic number, because the mean of its divisors is an integer number (72108036000).

Almost surely, 22031021201320 is an apocalyptic number.

2031021201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031021201320 is an abundant number, since it is smaller than the sum of its proper divisors (2583893102680).

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

2031021201320 is a wasteful number, since it uses less digits than its factorization.

2031021201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80202 (or 80198 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2031021201320 its reverse (231021201302), we get a palindrome (2262042402622).

The spelling of 2031021201320 in words is "two trillion, thirty-one billion, twenty-one million, two hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 103 206 412 515 824 1030 2060 4120 6719 13438 26876 33595 53752 67190 73369 134380 146738 268760 293476 366845 586952 692057 733690 1384114 1467380 2768228 2934760 3460285 5536456 6920570 7557007 13841140 15114014 27682280 30228028 37785035 60456056 75570070 151140140 302280280 492966311 985932622 1971865244 2464831555 3943730488 4929663110 9859326220 19718652440 50775530033 101551060066 203102120132 253877650165 406204240264 507755300330 1015510600660 2031021201320