Search a number
-
+
70088449 = 181593653
BaseRepresentation
bin1000010110101…
…11011100000001
311212212212021111
410023113130001
5120420312244
610542123321
71510512334
oct413273401
9155785244
1070088449
1136621542
121b580541
131169cb72
14944661b
156246e34
hex42d7701

70088449 has 8 divisors (see below), whose sum is σ = 70702632. Its totient is φ = 69477120.

The previous prime is 70088441. The next prime is 70088453. The reversal of 70088449 is 94488007.

It can be written as a sum of positive squares in 4 ways, for example, as 65025 + 70023424 = 255^2 + 8368^2 .

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 70088449 - 23 = 70088441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70088441) 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, 107007 + ... + 107659.

It is an arithmetic number, because the mean of its divisors is an integer number (8837829).

Almost surely, 270088449 is an apocalyptic number.

It is an amenable number.

70088449 is a deficient number, since it is larger than the sum of its proper divisors (614183).

70088449 is a wasteful number, since it uses less digits than its factorization.

70088449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 70088449 is about 8371.8844354183. The cubic root of 70088449 is about 412.3020395709.

The spelling of 70088449 in words is "seventy million, eighty-eight thousand, four hundred forty-nine".

Divisors: 1 181 593 653 107333 118193 387229 70088449