Search a number
-
+
2122100983 = 6731673149
BaseRepresentation
bin111111001111100…
…1011000011110111
312110220002220021201
41332133023003313
513321224212413
6550323553331
7103405363222
oct17637130367
95426086251
102122100983
11999963972
124b282b847
1327a858672
14161ba05b9
15c64809dd
hex7e7cb0f7

2122100983 has 4 divisors (see below), whose sum is σ = 2153774200. Its totient is φ = 2090427768.

The previous prime is 2122100963. The next prime is 2122100989. The reversal of 2122100983 is 3890012212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2122100983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122100989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15836508 + ... + 15836641.

It is an arithmetic number, because the mean of its divisors is an integer number (538443550).

Almost surely, 22122100983 is an apocalyptic number.

2122100983 is a deficient number, since it is larger than the sum of its proper divisors (31673217).

2122100983 is an equidigital number, since it uses as much as digits as its factorization.

2122100983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31673216.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2122100983 is about 46066.2673004879. The cubic root of 2122100983 is about 1285.0558869848.

The spelling of 2122100983 in words is "two billion, one hundred twenty-two million, one hundred thousand, nine hundred eighty-three".

Divisors: 1 67 31673149 2122100983