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70044440570 = 25131736738629
BaseRepresentation
bin100000100111011111…
…0010101011111111010
320200210111222020212122
41001032332111133322
52121422334044240
652102235241242
75026523630666
oct1011676253772
9220714866778
1070044440570
1127784295a15
12116a98a9222
1367b3707450
1435668a38a6
151c4e48d4b5
hex104ef957fa

70044440570 has 64 divisors (see below), whose sum is σ = 143821228320. Its totient is φ = 24331788288.

The previous prime is 70044440561. The next prime is 70044440581. The reversal of 70044440570 is 7504444007.

It can be written as a sum of positive squares in 16 ways, for example, as 1619821009 + 68424619561 = 40247^2 + 261581^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70044440570.

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, 8113016 + ... + 8121644.

Almost surely, 270044440570 is an apocalyptic number.

70044440570 is an abundant number, since it is smaller than the sum of its proper divisors (73776787750).

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

70044440570 is a wasteful number, since it uses less digits than its factorization.

70044440570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12339.

The product of its (nonzero) digits is 62720, while the sum is 35.

Adding to 70044440570 its reverse (7504444007), we get a palindrome (77548884577).

The spelling of 70044440570 in words is "seventy billion, forty-four million, four hundred forty thousand, five hundred seventy".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 3673 7346 8629 17258 18365 36730 43145 47749 62441 86290 95498 112177 124882 146693 224354 238745 293386 312205 477490 560885 624410 733465 811733 1121770 1466930 1623466 1907009 3814018 4058665 8117330 9535045 19070090 31694317 63388634 158471585 316943170 412026121 538803389 824052242 1077606778 2060130605 2694016945 4120261210 5388033890 7004444057 14008888114 35022220285 70044440570