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13961690744 = 231745211343
BaseRepresentation
bin11010000000010111…
…00111111001111000
31100001000101101011012
431000023213321320
5212043143100434
610225223253052
71002661261511
oct150013477170
940030341135
1013961690744
115a150129a1
1228578aa188
1314166b7a91
14966383a08
1556aab73ce
hex3402e7e78

13961690744 has 8 divisors (see below), whose sum is σ = 26178170160. Its totient is φ = 6980845368.

The previous prime is 13961690653. The next prime is 13961690747. The reversal of 13961690744 is 44709616931.

It is a happy number.

13961690744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 13961690692 and 13961690701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13961690747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872605664 + ... + 872605679.

It is an arithmetic number, because the mean of its divisors is an integer number (3272271270).

Almost surely, 213961690744 is an apocalyptic number.

It is an amenable number.

13961690744 is a deficient number, since it is larger than the sum of its proper divisors (12216479416).

13961690744 is a wasteful number, since it uses less digits than its factorization.

13961690744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745211349 (or 1745211345 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 13961690744 in words is "thirteen billion, nine hundred sixty-one million, six hundred ninety thousand, seven hundred forty-four".

Divisors: 1 2 4 8 1745211343 3490422686 6980845372 13961690744