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2120201320 = 235329916067
BaseRepresentation
bin111111001011111…
…1011010001101000
312110202112101102211
41332113323101220
513320232420240
6550215134504
7103353261646
oct17627732150
95422471384
102120201320
119988866a6
124b2074434
1327a341ac3
14161828196
15c6207bea
hex7e5fb468

2120201320 has 32 divisors (see below), whose sum is σ = 4772196000. Its totient is φ = 847770688.

The previous prime is 2120201297. The next prime is 2120201323. The reversal of 2120201320 is 231020212.

It is a super-3 number, since 3×21202013203 (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120201320.

It is not an unprimeable number, because it can be changed into a prime (2120201323) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 123927 + ... + 139993.

It is an arithmetic number, because the mean of its divisors is an integer number (149131125).

Almost surely, 22120201320 is an apocalyptic number.

2120201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120201320 is an abundant number, since it is smaller than the sum of its proper divisors (2651994680).

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

2120201320 is a wasteful number, since it uses less digits than its factorization.

2120201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19377 (or 19373 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2120201320 is about 46045.6438764841. The cubic root of 2120201320 is about 1284.6723202690.

Adding to 2120201320 its reverse (231020212), we get a palindrome (2351221532).

The spelling of 2120201320 in words is "two billion, one hundred twenty million, two hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3299 6598 13196 16067 16495 26392 32134 32990 64268 65980 80335 128536 131960 160670 321340 642680 53005033 106010066 212020132 265025165 424040264 530050330 1060100660 2120201320