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2122130236 = 2223139165947
BaseRepresentation
bin111111001111101…
…0010001100111100
312110220011101102011
41332133102030330
513321231131421
6550324341004
7103405544422
oct17637221474
95426141364
102122130236
11999983946
124b2844764
1327a868a85
14161bab112
15c64894e1
hex7e7d233c

2122130236 has 24 divisors (see below), whose sum is σ = 3903096960. Its totient is φ = 1007624112.

The previous prime is 2122130233. The next prime is 2122130237. The reversal of 2122130236 is 6320312212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122130233) 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, 70186 + ... + 95761.

It is an arithmetic number, because the mean of its divisors is an integer number (162629040).

Almost surely, 22122130236 is an apocalyptic number.

It is an amenable number.

2122130236 is a deficient number, since it is larger than the sum of its proper divisors (1780966724).

2122130236 is a wasteful number, since it uses less digits than its factorization.

2122130236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166113 (or 166111 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2122130236 is about 46066.5848093822. The cubic root of 2122130236 is about 1285.0617917567.

Adding to 2122130236 its reverse (6320312212), we get a palindrome (8442442448).

The spelling of 2122130236 in words is "two billion, one hundred twenty-two million, one hundred thirty thousand, two hundred thirty-six".

Divisors: 1 2 4 23 46 92 139 278 556 3197 6394 12788 165947 331894 663788 3816781 7633562 15267124 23066633 46133266 92266532 530532559 1061065118 2122130236