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2121994 = 27259367
BaseRepresentation
bin1000000110000100001010
310222210211101
420012010022
51020400434
6113252014
724015400
oct10060412
93883741
102121994
11121a316
1286400a
13593b24
143d3470
152bdb14
hex20610a

2121994 has 24 divisors (see below), whose sum is σ = 3775680. Its totient is φ = 891576.

The previous prime is 2121989. The next prime is 2122009. The reversal of 2121994 is 4991212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5599 + ... + 5965.

It is an arithmetic number, because the mean of its divisors is an integer number (157320).

22121994 is an apocalyptic number.

2121994 is a deficient number, since it is larger than the sum of its proper divisors (1653686).

2121994 is a wasteful number, since it uses less digits than its factorization.

2121994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 435 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 2121994 is about 1456.7065593317. The cubic root of 2121994 is about 128.5034291807.

The spelling of 2121994 in words is "two million, one hundred twenty-one thousand, nine hundred ninety-four".

Divisors: 1 2 7 14 49 59 98 118 367 413 734 826 2569 2891 5138 5782 17983 21653 35966 43306 151571 303142 1060997 2121994