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2152801 = 7307543
BaseRepresentation
bin1000001101100101100001
311001101002101
420031211201
51022342201
6114050401
724204250
oct10154541
94041071
102152801
111240482
12879a01
135a4b61
14400797
152c7d01
hex20d961

2152801 has 4 divisors (see below), whose sum is σ = 2460352. Its totient is φ = 1845252.

The previous prime is 2152793. The next prime is 2152811. The reversal of 2152801 is 1082512.

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 a cyclic number.

It is not a de Polignac number, because 2152801 - 23 = 2152793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152811) 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, 153765 + ... + 153778.

It is an arithmetic number, because the mean of its divisors is an integer number (615088).

22152801 is an apocalyptic number.

It is an amenable number.

2152801 is a deficient number, since it is larger than the sum of its proper divisors (307551).

2152801 is an equidigital number, since it uses as much as digits as its factorization.

2152801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307550.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2152801 is about 1467.2426520518. The cubic root of 2152801 is about 129.1223125316.

The spelling of 2152801 in words is "two million, one hundred fifty-two thousand, eight hundred one".

Divisors: 1 7 307543 2152801