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6940494519 = 377926315907
BaseRepresentation
bin1100111011010111…
…11000101010110111
3122220200202122121120
412131223320222313
5103203231311034
63104410515023
7333664141620
oct63553705267
918820678546
106940494519
112a41801292
121418435a73
13867ba00ba
1449baaaa47
152a94b2c49
hex19daf8ab7

6940494519 has 32 divisors (see below), whose sum is σ = 10751262720. Its totient is φ = 3900660192.

The previous prime is 6940494503. The next prime is 6940494527. The reversal of 6940494519 is 9154940496.

It is not a de Polignac number, because 6940494519 - 24 = 6940494503 is a prime.

It is a super-2 number, since 2×69404945192 = 96340928336538082722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6940494599) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428364 + ... + 444270.

It is an arithmetic number, because the mean of its divisors is an integer number (335976960).

Almost surely, 26940494519 is an apocalyptic number.

6940494519 is a deficient number, since it is larger than the sum of its proper divisors (3810768201).

6940494519 is a wasteful number, since it uses less digits than its factorization.

6940494519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 6940494519 is about 83309.6304096951. The cubic root of 6940494519 is about 1907.4952794461.

The spelling of 6940494519 in words is "six billion, nine hundred forty million, four hundred ninety-four thousand, five hundred nineteen".

Divisors: 1 3 7 21 79 237 263 553 789 1659 1841 5523 15907 20777 47721 62331 111349 145439 334047 436317 1256653 3769959 4183541 8796571 12550623 26389713 29284787 87854361 330499739 991499217 2313498173 6940494519