Search a number
-
+
70090207 = 1147135571
BaseRepresentation
bin1000010110101…
…11110111011111
311212212221200121
410023113313133
5120420341312
610542135411
71510520425
oct413276737
9155787617
1070090207
11366228a0
121b581567
13116a08c5
149447115
156247707
hex42d7ddf

70090207 has 8 divisors (see below), whose sum is σ = 78089472. Its totient is φ = 62362200.

The previous prime is 70090127. The next prime is 70090213. The reversal of 70090207 is 70209007.

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 70090207 - 219 = 69565919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70090217) 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, 67269 + ... + 68302.

It is an arithmetic number, because the mean of its divisors is an integer number (9761184).

Almost surely, 270090207 is an apocalyptic number.

70090207 is a deficient number, since it is larger than the sum of its proper divisors (7999265).

70090207 is a wasteful number, since it uses less digits than its factorization.

70090207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135629.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 70090207 is about 8371.9894290425. The cubic root of 70090207 is about 412.3054867434.

The spelling of 70090207 in words is "seventy million, ninety thousand, two hundred seven".

Divisors: 1 11 47 517 135571 1491281 6371837 70090207