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69877677896 = 23132149346877
BaseRepresentation
bin100000100010100001…
…0001011111101001000
320200100220011211111022
41001011002023331020
52121102141143041
652033521052012
75022430314305
oct1010502137510
9220326154438
1069877677896
11276a9144724
1211661a87008
136787cb9800
14354c6940ac
151c3e9ec24b
hex104508bf48

69877677896 has 48 divisors (see below), whose sum is σ = 142827016500. Its totient is φ = 32034692352.

The previous prime is 69877677889. The next prime is 69877677917.

69877677896 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 14282640100 + 55595037796 = 119510^2 + 235786^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 69877677896.

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, 28010 + ... + 374886.

Almost surely, 269877677896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69877677896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71413508250).

69877677896 is an abundant number, since it is smaller than the sum of its proper divisors (72949338604).

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

69877677896 is a wasteful number, since it uses less digits than its factorization.

69877677896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347058 (or 347041 counting only the distinct ones).

The product of its digits is 2688505344, while the sum is 80.

The spelling of 69877677896 in words is "sixty-nine billion, eight hundred seventy-seven million, six hundred seventy-seven thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 13 26 52 104 149 169 298 338 596 676 1192 1352 1937 3874 7748 15496 25181 50362 100724 201448 346877 693754 1387508 2775016 4509401 9018802 18037604 36075208 51684673 58622213 103369346 117244426 206738692 234488852 413477384 468977704 671900749 1343801498 2687602996 5375205992 8734709737 17469419474 34938838948 69877677896