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13943941 = 114213011
BaseRepresentation
bin110101001100…
…010010000101
3222020102111021
4311030102011
512032201231
61214511141
7226343614
oct65142205
928212437
1013943941
117964320
1248054b1
132b72a6b
141bcd87b
151356811
hexd4c485

13943941 has 8 divisors (see below), whose sum is σ = 15252768. Its totient is φ = 12642000.

The previous prime is 13943933. The next prime is 13943947. The reversal of 13943941 is 14934931.

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

It is a cyclic number.

It is not a de Polignac number, because 13943941 - 23 = 13943933 is a prime.

It is a super-2 number, since 2×139439412 = 388866981222962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13943897 and 13943906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13943947) 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, 3126 + ... + 6136.

It is an arithmetic number, because the mean of its divisors is an integer number (1906596).

Almost surely, 213943941 is an apocalyptic number.

13943941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13943941 is a deficient number, since it is larger than the sum of its proper divisors (1308827).

13943941 is a wasteful number, since it uses less digits than its factorization.

13943941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443.

The product of its digits is 11664, while the sum is 34.

The square root of 13943941 is about 3734.1586736506. The cubic root of 13943941 is about 240.6921052172.

It can be divided in two parts, 13943 and 941, that added together give a square (14884 = 1222).

The spelling of 13943941 in words is "thirteen million, nine hundred forty-three thousand, nine hundred forty-one".

Divisors: 1 11 421 3011 4631 33121 1267631 13943941