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2100313331 = 17265746499
BaseRepresentation
bin111110100110000…
…0011110011110011
312102101002222020122
41331030003303303
513300140011311
6544225000455
7103022240324
oct17514036363
95371088218
102100313331
11988632546
124a748312b
1327619a66c
1415cd2c44b
15c45ca0db
hex7d303cf3

2100313331 has 8 divisors (see below), whose sum is σ = 2224746000. Its totient is φ = 1975979008.

The previous prime is 2100313279. The next prime is 2100313337. The reversal of 2100313331 is 1333130012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2100313331 is a prime.

It is a super-2 number, since 2×21003133312 = 8822632176752631122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100313337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21920 + ... + 68418.

It is an arithmetic number, because the mean of its divisors is an integer number (278093250).

Almost surely, 22100313331 is an apocalyptic number.

2100313331 is a deficient number, since it is larger than the sum of its proper divisors (124432669).

2100313331 is a wasteful number, since it uses less digits than its factorization.

2100313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49173.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 2100313331 is about 45829.1755435334. The cubic root of 2100313331 is about 1280.6428515265.

Adding to 2100313331 its reverse (1333130012), we get a palindrome (3433443343).

The spelling of 2100313331 in words is "two billion, one hundred million, three hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 17 2657 45169 46499 790483 123547843 2100313331