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70487068507 = 223316085509
BaseRepresentation
bin100000110100101011…
…0110100111101011011
320201221100212002020221
41001221112310331123
52123324142143012
652214210300511
75043510124312
oct1015126647533
9221840762227
1070487068507
1127991126929
12117b1b87737
13685432277b
1435a95a3279
151c78272507
hex10695b4f5b

70487068507 has 4 divisors (see below), whose sum is σ = 70803154240. Its totient is φ = 70170982776.

The previous prime is 70487068481. The next prime is 70487068529. The reversal of 70487068507 is 70586078407.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70487068507 is a prime.

It is a super-2 number, since 2×704870685072 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70487068007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158042532 + ... + 158042977.

It is an arithmetic number, because the mean of its divisors is an integer number (17700788560).

Almost surely, 270487068507 is an apocalyptic number.

70487068507 is a deficient number, since it is larger than the sum of its proper divisors (316085733).

70487068507 is a wasteful number, since it uses less digits than its factorization.

70487068507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316085732.

The product of its (nonzero) digits is 2634240, while the sum is 52.

It can be divided in two parts, 704870 and 68507, that added together give a palindrome (773377).

The spelling of 70487068507 in words is "seventy billion, four hundred eighty-seven million, sixty-eight thousand, five hundred seven".

Divisors: 1 223 316085509 70487068507