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69144344634 = 2329397381291
BaseRepresentation
bin100000001100101010…
…0101111100000111010
320121110210021122101010
41000121110233200322
52113101423012014
651433043134350
74665314142411
oct1003124574072
9217423248333
1069144344634
11273621a8582
12114983743b6
13669c0a91c1
1434bd120478
151bea443359
hex101952f83a

69144344634 has 16 divisors (see below), whose sum is σ = 143057265120. Its totient is φ = 22253352240.

The previous prime is 69144344623. The next prime is 69144344641. The reversal of 69144344634 is 43644344196.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198690472 + ... + 198690819.

It is an arithmetic number, because the mean of its divisors is an integer number (8941079070).

Almost surely, 269144344634 is an apocalyptic number.

69144344634 is an abundant number, since it is smaller than the sum of its proper divisors (73912920486).

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

69144344634 is a wasteful number, since it uses less digits than its factorization.

69144344634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397381325.

The product of its digits is 2985984, while the sum is 48.

The spelling of 69144344634 in words is "sixty-nine billion, one hundred forty-four million, three hundred forty-four thousand, six hundred thirty-four".

Divisors: 1 2 3 6 29 58 87 174 397381291 794762582 1192143873 2384287746 11524057439 23048114878 34572172317 69144344634