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2231697 = 31357223
BaseRepresentation
bin1000100000110110010001
311012101022110
420200312101
51032403242
6115455533
724653256
oct10406621
94171273
102231697
111294786
128b75a9
13601a40
1442142d
152e139c
hex220d91

2231697 has 8 divisors (see below), whose sum is σ = 3204544. Its totient is φ = 1373328.

The previous prime is 2231687. The next prime is 2231707. The reversal of 2231697 is 7961322.

It is an interprime number because it is at equal distance from previous prime (2231687) and next prime (2231707).

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

It is not a de Polignac number, because 2231697 - 24 = 2231681 is a prime.

It is a super-3 number, since 3×22316973 = 33344709914127737619, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28573 + ... + 28650.

It is an arithmetic number, because the mean of its divisors is an integer number (400568).

22231697 is an apocalyptic number.

It is an amenable number.

2231697 is a deficient number, since it is larger than the sum of its proper divisors (972847).

2231697 is a wasteful number, since it uses less digits than its factorization.

2231697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57239.

The product of its digits is 4536, while the sum is 30.

The square root of 2231697 is about 1493.8865418766. The cubic root of 2231697 is about 130.6807875838.

The spelling of 2231697 in words is "two million, two hundred thirty-one thousand, six hundred ninety-seven".

Divisors: 1 3 13 39 57223 171669 743899 2231697