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2100442707 = 321161347813
BaseRepresentation
bin111110100110010…
…0011011001010011
312102101100112201100
41331030203121103
513300203131312
6544231435443
7103023316446
oct17514433123
95371315640
102100442707
11988710770
124a7525b83
1327621450c
1415cd6365d
15c46035dc
hex7d323653

2100442707 has 24 divisors (see below), whose sum is σ = 3364057008. Its totient is φ = 1252123200.

The previous prime is 2100442699. The next prime is 2100442787. The reversal of 2100442707 is 7072440012.

It is a happy number.

2100442707 is a `hidden beast` number, since 210 + 0 + 442 + 7 + 0 + 7 = 666.

It is not a de Polignac number, because 2100442707 - 23 = 2100442699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100442787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167868 + ... + 179945.

It is an arithmetic number, because the mean of its divisors is an integer number (140169042).

Almost surely, 22100442707 is an apocalyptic number.

2100442707 is a deficient number, since it is larger than the sum of its proper divisors (1263614301).

2100442707 is a wasteful number, since it uses less digits than its factorization.

2100442707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347891 (or 347888 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 2100442707 is about 45830.5870243880. The cubic root of 2100442707 is about 1280.6691461822.

Adding to 2100442707 its reverse (7072440012), we get a palindrome (9172882719).

The spelling of 2100442707 in words is "two billion, one hundred million, four hundred forty-two thousand, seven hundred seven".

Divisors: 1 3 9 11 33 61 99 183 549 671 2013 6039 347813 1043439 3130317 3825943 11477829 21216593 34433487 63649779 190949337 233382523 700147569 2100442707