Search a number
-
+
2197492 = 221149943
BaseRepresentation
bin1000011000011111110100
311010122101121
420120133310
51030304432
6115033324
724451453
oct10303764
94118347
102197492
111271010
1289b844
135bc2bb
14412b9a
152d6197
hex2187f4

2197492 has 12 divisors (see below), whose sum is σ = 4195296. Its totient is φ = 998840.

The previous prime is 2197487. The next prime is 2197493. The reversal of 2197492 is 2947912.

It is a happy number.

2197492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24928 + ... + 25015.

It is an arithmetic number, because the mean of its divisors is an integer number (349608).

22197492 is an apocalyptic number.

2197492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2197492 is a deficient number, since it is larger than the sum of its proper divisors (1997804).

2197492 is a wasteful number, since it uses less digits than its factorization.

2197492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49958 (or 49956 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 2197492 is about 1482.3940097019. The cubic root of 2197492 is about 130.0097034177.

The spelling of 2197492 in words is "two million, one hundred ninety-seven thousand, four hundred ninety-two".

Divisors: 1 2 4 11 22 44 49943 99886 199772 549373 1098746 2197492