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2121310014 = 231761340937
BaseRepresentation
bin111111001110000…
…1001111100111110
312110211121201021120
41332130021330332
513321023410024
6550255011410
7103365560205
oct17634117476
95424551246
102121310014
1199947367a
124b2509b66
1327a63c635
14161a3623c
15c6376479
hex7e709f3e

2121310014 has 32 divisors (see below), whose sum is σ = 4565841696. Its totient is φ = 654597120.

The previous prime is 2121310007. The next prime is 2121310019. The reversal of 2121310014 is 4100131212.

It is a junction number, because it is equal to n+sod(n) for n = 2121309975 and 2121310002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121310019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164247 + ... + 176690.

It is an arithmetic number, because the mean of its divisors is an integer number (142682553).

Almost surely, 22121310014 is an apocalyptic number.

2121310014 is an abundant number, since it is smaller than the sum of its proper divisors (2444531682).

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

2121310014 is a wasteful number, since it uses less digits than its factorization.

2121310014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341020.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2121310014 is about 46057.6813788970. The cubic root of 2121310014 is about 1284.8962078602.

Adding to 2121310014 its reverse (4100131212), we get a palindrome (6221441226).

The spelling of 2121310014 in words is "two billion, one hundred twenty-one million, three hundred ten thousand, fourteen".

Divisors: 1 2 3 6 17 34 51 61 102 122 183 366 1037 2074 3111 6222 340937 681874 1022811 2045622 5795929 11591858 17387787 20797157 34775574 41594314 62391471 124782942 353551669 707103338 1060655007 2121310014