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70716205070 = 25719291833451
BaseRepresentation
bin100000111011100000…
…0111010100000001110
320202112100000102112022
41001313000322200032
52124311322030240
652253033410142
75052261553040
oct1016700724016
9222470012468
1070716205070
1127a994aa595
1211856869952
13688c93ba34
1435cbbaba90
151c8d4349b5
hex107703a80e

70716205070 has 64 divisors (see below), whose sum is σ = 158410252800. Its totient is φ = 22177411200.

The previous prime is 70716205069. The next prime is 70716205097. The reversal of 70716205070 is 7050261707.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 70716205070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 878156 + ... + 955295.

It is an arithmetic number, because the mean of its divisors is an integer number (2475160200).

Almost surely, 270716205070 is an apocalyptic number.

70716205070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70716205070 is an abundant number, since it is smaller than the sum of its proper divisors (87694047730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70716205070 is a wasteful number, since it uses less digits than its factorization.

70716205070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833513.

The product of its (nonzero) digits is 20580, while the sum is 35.

Adding to 70716205070 its reverse (7050261707), we get a palindrome (77766466777).

The spelling of 70716205070 in words is "seventy billion, seven hundred sixteen million, two hundred five thousand, seventy".

Divisors: 1 2 5 7 10 14 19 29 35 38 58 70 95 133 145 190 203 266 290 406 551 665 1015 1102 1330 2030 2755 3857 5510 7714 19285 38570 1833451 3666902 9167255 12834157 18334510 25668314 34835569 53170079 64170785 69671138 106340158 128341570 174177845 243848983 265850395 348355690 372190553 487697966 531700790 744381106 1010231501 1219244915 1860952765 2020463002 2438489830 3721905530 5051157505 7071620507 10102315010 14143241014 35358102535 70716205070