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2172252 = 2231571153
BaseRepresentation
bin1000010010010101011100
311002100202210
420102111130
51024003002
6114320420
724315045
oct10222534
94070683
102172252
111254055
12889110
135b0974
144078cc
152cd96c
hex21255c

2172252 has 24 divisors (see below), whose sum is σ = 5105296. Its totient is φ = 718848.

The previous prime is 2172241. The next prime is 2172253. The reversal of 2172252 is 2522712.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172253) 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, 1308 + ... + 2460.

22172252 is an apocalyptic number.

It is an amenable number.

2172252 is an abundant number, since it is smaller than the sum of its proper divisors (2933044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172252 is a wasteful number, since it uses less digits than its factorization.

2172252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317 (or 1315 counting only the distinct ones).

The product of its digits is 560, while the sum is 21.

The square root of 2172252 is about 1473.8561666594. The cubic root of 2172252 is about 129.5100293858.

Adding to 2172252 its reverse (2522712), we get a palindrome (4694964).

The spelling of 2172252 in words is "two million, one hundred seventy-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 157 314 471 628 942 1153 1884 2306 3459 4612 6918 13836 181021 362042 543063 724084 1086126 2172252