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2470561 = 61101401
BaseRepresentation
bin1001011011001010100001
311122111222021
421123022201
51113024221
6124541441
726666542
oct11331241
94574867
102470561
111438195
129b1881
13686692
144844c9
1533c041
hex25b2a1

2470561 has 8 divisors (see below), whose sum is σ = 2542248. Its totient is φ = 2400000.

The previous prime is 2470553. The next prime is 2470579. The reversal of 2470561 is 1650742.

It can be written as a sum of positive squares in 4 ways, for example, as 1089936 + 1380625 = 1044^2 + 1175^2 .

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

It is a 5-Lehmer number, since φ(2470561) divides (2470561-1)5.

It is a cyclic number.

It is not a de Polignac number, because 2470561 - 23 = 2470553 is a prime.

It is a super-2 number, since 2×24705612 = 12207343309442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2470261) 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, 5961 + ... + 6361.

It is an arithmetic number, because the mean of its divisors is an integer number (317781).

22470561 is an apocalyptic number.

It is an amenable number.

2470561 is a deficient number, since it is larger than the sum of its proper divisors (71687).

2470561 is a wasteful number, since it uses less digits than its factorization.

2470561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2470561 is about 1571.8018322931. The cubic root of 2470561 is about 135.1860443621.

The spelling of 2470561 in words is "two million, four hundred seventy thousand, five hundred sixty-one".

Divisors: 1 61 101 401 6161 24461 40501 2470561