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6944039380 = 225379383837
BaseRepresentation
bin1100111011110010…
…11010000111010100
3122220221102202020201
412131321122013110
5103210133230010
63105014510244
7334036234525
oct63571320724
918827382221
106944039380
112a43802623
121419665384
13868841755
1449c35084c
152a996323a
hex19de5a1d4

6944039380 has 24 divisors (see below), whose sum is σ = 14976605448. Its totient is φ = 2702544768.

The previous prime is 6944039369. The next prime is 6944039381. The reversal of 6944039380 is 839304496.

It can be written as a sum of positive squares in 4 ways, for example, as 2705248144 + 4238791236 = 52012^2 + 65106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6944039380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6944039381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4691179 + ... + 4692658.

It is an arithmetic number, because the mean of its divisors is an integer number (624025227).

Almost surely, 26944039380 is an apocalyptic number.

It is an amenable number.

6944039380 is an abundant number, since it is smaller than the sum of its proper divisors (8032566068).

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

6944039380 is a wasteful number, since it uses less digits than its factorization.

6944039380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9383883 (or 9383881 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 6944039380 is about 83330.9029112250. The cubic root of 6944039380 is about 1907.8199755579.

The spelling of 6944039380 in words is "six billion, nine hundred forty-four million, thirty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 9383837 18767674 37535348 46919185 93838370 187676740 347201969 694403938 1388807876 1736009845 3472019690 6944039380