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2201601 = 3733867
BaseRepresentation
bin1000011001100000000001
311010212000210
420121200001
51030422401
6115104333
724466443
oct10314001
94125023
102201601
111274106
128a20a9
135c112c
14414493
152d74d6
hex219801

2201601 has 4 divisors (see below), whose sum is σ = 2935472. Its totient is φ = 1467732.

The previous prime is 2201599. The next prime is 2201603. The reversal of 2201601 is 1061022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2201599) and next prime (2201603).

It is not a de Polignac number, because 2201601 - 21 = 2201599 is a prime.

It is a D-number.

It is a Duffinian number.

2201601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2201603) 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, 366931 + ... + 366936.

It is an arithmetic number, because the mean of its divisors is an integer number (733868).

It is a Proth number, since it is equal to 1075 ⋅ 211 + 1 and 1075 < 211.

22201601 is an apocalyptic number.

It is an amenable number.

2201601 is a deficient number, since it is larger than the sum of its proper divisors (733871).

2201601 is an equidigital number, since it uses as much as digits as its factorization.

2201601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733870.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2201601 is about 1483.7792962567. The cubic root of 2201601 is about 130.0906862307.

Adding to 2201601 its reverse (1061022), we get a palindrome (3262623).

The spelling of 2201601 in words is "two million, two hundred one thousand, six hundred one".

Divisors: 1 3 733867 2201601