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2172082 = 21198731
BaseRepresentation
bin1000010010010010110010
311002100112111
420102102302
51024001312
6114315534
724314413
oct10222262
94070474
102172082
111253a10
12888baa
135b0873
1440780a
152cd8a7
hex2124b2

2172082 has 8 divisors (see below), whose sum is σ = 3554352. Its totient is φ = 987300.

The previous prime is 2172067. The next prime is 2172083. The reversal of 2172082 is 2802712.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 98731 = 2172082 / (2 + 1 + 7 + 2 + 0 + 8 + 2).

It is not an unprimeable number, because it can be changed into a prime (2172083) 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, 49344 + ... + 49387.

It is an arithmetic number, because the mean of its divisors is an integer number (444294).

22172082 is an apocalyptic number.

2172082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2172082 is a deficient number, since it is larger than the sum of its proper divisors (1382270).

2172082 is a wasteful number, since it uses less digits than its factorization.

2172082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98744.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2172082 is about 1473.7984936890. The cubic root of 2172082 is about 129.5066508214.

Adding to 2172082 its reverse (2802712), we get a palindrome (4974794).

The spelling of 2172082 in words is "two million, one hundred seventy-two thousand, eighty-two".

Divisors: 1 2 11 22 98731 197462 1086041 2172082