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1070493885 = 32523788753
BaseRepresentation
bin111111110011100…
…111000010111101
32202121022201112200
4333303213002331
54143021301020
6254120222113
735346022266
oct7763470275
92677281480
101070493885
114aa2a199a
1225a60a939
13140a1c746
14a225b96d
1563ea8590
hex3fce70bd

1070493885 has 12 divisors (see below), whose sum is σ = 1855522812. Its totient is φ = 570930048.

The previous prime is 1070493871. The next prime is 1070493913. The reversal of 1070493885 is 5883940701.

1070493885 is a `hidden beast` number, since 10 + 70 + 493 + 8 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 125484804 + 945009081 = 11202^2 + 30741^2 .

It is not a de Polignac number, because 1070493885 - 218 = 1070231741 is a prime.

It is a super-2 number, since 2×10704938852 = 2291914315644786450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 23788753 = 1070493885 / (1 + 0 + 7 + 0 + 4 + 9 + 3 + 8 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1070493885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11894332 + ... + 11894421.

It is an arithmetic number, because the mean of its divisors is an integer number (154626901).

Almost surely, 21070493885 is an apocalyptic number.

1070493885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1070493885 is a deficient number, since it is larger than the sum of its proper divisors (785028927).

1070493885 is a wasteful number, since it uses less digits than its factorization.

1070493885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23788764 (or 23788761 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1070493885 is about 32718.4028491612. The cubic root of 1070493885 is about 1022.9664651907.

The spelling of 1070493885 in words is "one billion, seventy million, four hundred ninety-three thousand, eight hundred eighty-five".

Divisors: 1 3 5 9 15 45 23788753 71366259 118943765 214098777 356831295 1070493885