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13920541930 = 251392054193
BaseRepresentation
bin11001111011011101…
…01001110011101010
31022221010221210121001
430331232221303222
5212002124320210
610221153305214
71001651440231
oct147556516352
938833853531
1013920541930
1159a3868209
122845b6520a
13140b00b379
14960b11b18
1556718a03a
hex33dba9cea

13920541930 has 8 divisors (see below), whose sum is σ = 25056975492. Its totient is φ = 5568216768.

The previous prime is 13920541927. The next prime is 13920541937. The reversal of 13920541930 is 3914502931.

It can be written as a sum of positive squares in 2 ways, for example, as 13881316761 + 39225169 = 117819^2 + 6263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13920541930.

It is not an unprimeable number, because it can be changed into a prime (13920541937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696027087 + ... + 696027106.

Almost surely, 213920541930 is an apocalyptic number.

13920541930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13920541930 is a deficient number, since it is larger than the sum of its proper divisors (11136433562).

13920541930 is a wasteful number, since it uses less digits than its factorization.

13920541930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392054200.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 13920541930 in words is "thirteen billion, nine hundred twenty million, five hundred forty-one thousand, nine hundred thirty".

Divisors: 1 2 5 10 1392054193 2784108386 6960270965 13920541930