[go: up one dir, main page]

Search a number
-
+
2101966 = 22693907
BaseRepresentation
bin1000000001001011001110
310221210100121
420001023032
51014230331
6113015154
723603116
oct10011316
93853317
102101966
111206269
128544ba
13587989
143ca046
152b7c11
hex2012ce

2101966 has 8 divisors (see below), whose sum is σ = 3165480. Its totient is φ = 1046808.

The previous prime is 2101961. The next prime is 2102021. The reversal of 2101966 is 6691012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21019662 = 8836522130312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2101966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101961) 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, 1416 + ... + 2491.

It is an arithmetic number, because the mean of its divisors is an integer number (395685).

22101966 is an apocalyptic number.

2101966 is a deficient number, since it is larger than the sum of its proper divisors (1063514).

2101966 is a wasteful number, since it uses less digits than its factorization.

2101966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2101966 is about 1449.8158503755. The cubic root of 2101966 is about 128.0978662351.

Adding to 2101966 its reverse (6691012), we get a palindrome (8792978).

The spelling of 2101966 in words is "two million, one hundred one thousand, nine hundred sixty-six".

Divisors: 1 2 269 538 3907 7814 1050983 2101966