Search a number
-
+
70298071 = 791974517
BaseRepresentation
bin1000011000010…
…10100111010111
311220021111211021
410030022213113
5120444014241
610550422011
71512344434
oct414124727
9156244737
1070298071
1136754a88
121b661907
13117443bc
14949cb8b
1562890d1
hex430a9d7

70298071 has 8 divisors (see below), whose sum is σ = 71565120. Its totient is φ = 69040608.

The previous prime is 70298069. The next prime is 70298089. The reversal of 70298071 is 17089207.

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 70298071 - 21 = 70298069 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 (70298021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13305 + ... + 17821.

It is an arithmetic number, because the mean of its divisors is an integer number (8945640).

Almost surely, 270298071 is an apocalyptic number.

70298071 is a deficient number, since it is larger than the sum of its proper divisors (1267049).

70298071 is a wasteful number, since it uses less digits than its factorization.

70298071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 70298071 is about 8384.3944921503. The cubic root of 70298071 is about 412.7126709903.

The spelling of 70298071 in words is "seventy million, two hundred ninety-eight thousand, seventy-one".

Divisors: 1 79 197 4517 15563 356843 889849 70298071