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2872101 = 32813407
BaseRepresentation
bin1010111101001100100101
312101220210010
422331030211
51213401401
6141320433
733261321
oct12751445
95356703
102872101
111691941
12b66119
1379738b
1454a981
153baed6
hex2bd325

2872101 has 8 divisors (see below), whose sum is σ = 3844224. Its totient is φ = 1907360.

The previous prime is 2872081. The next prime is 2872109. The reversal of 2872101 is 1012782.

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

It is a cyclic number.

It is not a de Polignac number, because 2872101 - 25 = 2872069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872109) 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, 861 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (480528).

22872101 is an apocalyptic number.

It is an amenable number.

2872101 is a deficient number, since it is larger than the sum of its proper divisors (972123).

2872101 is a wasteful number, since it uses less digits than its factorization.

2872101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 2872101 is about 1694.7274117096. The cubic root of 2872101 is about 142.1455394680.

Adding to 2872101 its reverse (1012782), we get a palindrome (3884883).

The spelling of 2872101 in words is "two million, eight hundred seventy-two thousand, one hundred one".

Divisors: 1 3 281 843 3407 10221 957367 2872101