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2220597 = 32251983
BaseRepresentation
bin1000011110001000110101
311011211002100
420132020311
51032024342
6115332313
724606021
oct10361065
94154070
102220597
111287405
128b1099
135c9982
1441b381
152dce4c
hex21e235

2220597 has 12 divisors (see below), whose sum is σ = 3223584. Its totient is φ = 1473000.

The previous prime is 2220553. The next prime is 2220643. The reversal of 2220597 is 7950222.

It is a happy number.

It is not a de Polignac number, because 2220597 - 211 = 2218549 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1768 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (268632).

22220597 is an apocalyptic number.

It is an amenable number.

2220597 is a deficient number, since it is larger than the sum of its proper divisors (1002987).

2220597 is a wasteful number, since it uses less digits than its factorization.

2220597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2220597 is about 1490.1667691906. The cubic root of 2220597 is about 130.4637676310.

The spelling of 2220597 in words is "two million, two hundred twenty thousand, five hundred ninety-seven".

Divisors: 1 3 9 251 753 983 2259 2949 8847 246733 740199 2220597