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70770006557 = 891553512021
BaseRepresentation
bin100000111101000111…
…0001001101000011101
320202200002020211021222
41001322032021220131
52124414110202212
652302234503125
75053514062505
oct1017216115035
9222602224258
1070770006557
1128016907428
1211870894aa5
13689ab28533
1435d4db4a05
151c93010c72
hex107a389a1d

70770006557 has 8 divisors (see below), whose sum is σ = 71611396920. Its totient is φ = 69929643520.

The previous prime is 70770006529. The next prime is 70770006589. The reversal of 70770006557 is 75560007707.

It can be written as a sum of positive squares in 4 ways, for example, as 4829416036 + 65940590521 = 69494^2 + 256789^2 .

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 70770006557 - 210 = 70770005533 is a prime.

It is a super-3 number, since 3×707700065573 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70770002557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117794 + ... + 394227.

It is an arithmetic number, because the mean of its divisors is an integer number (8951424615).

Almost surely, 270770006557 is an apocalyptic number.

It is an amenable number.

70770006557 is a deficient number, since it is larger than the sum of its proper divisors (841390363).

70770006557 is a wasteful number, since it uses less digits than its factorization.

70770006557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513663.

The product of its (nonzero) digits is 360150, while the sum is 44.

The spelling of 70770006557 in words is "seventy billion, seven hundred seventy million, six thousand, five hundred fifty-seven".

Divisors: 1 89 1553 138217 512021 45569869 795168613 70770006557