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2180396 = 221972767
BaseRepresentation
bin1000010100010100101100
311002202221102
420110110230
51024233041
6114422232
724350561
oct10242454
94082842
102180396
11125a189
12891978
135b459a
1440a868
152d109b
hex21452c

2180396 has 12 divisors (see below), whose sum is σ = 3836448. Its totient is φ = 1084272.

The previous prime is 2180393. The next prime is 2180417. The reversal of 2180396 is 6930812.

2180396 is digitally balanced in base 5, 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 (2180393) 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, 596 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (319704).

22180396 is an apocalyptic number.

It is an amenable number.

2180396 is a deficient number, since it is larger than the sum of its proper divisors (1656052).

2180396 is a wasteful number, since it uses less digits than its factorization.

2180396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968 (or 2966 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2180396 is about 1476.6164024553. The cubic root of 2180396 is about 129.6716764262.

The spelling of 2180396 in words is "two million, one hundred eighty thousand, three hundred ninety-six".

Divisors: 1 2 4 197 394 788 2767 5534 11068 545099 1090198 2180396