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2489205 = 35165947
BaseRepresentation
bin1001011111101101110101
311200110112210
421133231311
51114123310
6125204033
730105105
oct11375565
94613483
102489205
1114501a4
12a00619
13692004
1448b205
15342820
hex25fb75

2489205 has 8 divisors (see below), whose sum is σ = 3982752. Its totient is φ = 1327568.

The previous prime is 2489197. The next prime is 2489213. The reversal of 2489205 is 5029842.

It is an interprime number because it is at equal distance from previous prime (2489197) and next prime (2489213).

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 2489205 - 23 = 2489197 is a prime.

It is a super-2 number, since 2×24892052 = 12392283064050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82959 + ... + 82988.

It is an arithmetic number, because the mean of its divisors is an integer number (497844).

22489205 is an apocalyptic number.

It is an amenable number.

2489205 is a deficient number, since it is larger than the sum of its proper divisors (1493547).

2489205 is a wasteful number, since it uses less digits than its factorization.

2489205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165955.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2489205 is about 1577.7214583062. The cubic root of 2489205 is about 135.5252513952.

It can be divided in two parts, 248 and 9205, that added together give a triangular number (9453 = T137).

The spelling of 2489205 in words is "two million, four hundred eighty-nine thousand, two hundred five".

Divisors: 1 3 5 15 165947 497841 829735 2489205