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13400051 = 74334421
BaseRepresentation
bin110011000111…
…011111110011
3221012210102012
4303013133303
511412300201
61155113135
7221620130
oct63073763
927183365
1013400051
117622725
1245a27ab
132a12332
141acb587
15129a5bb
hexcc77f3

13400051 has 8 divisors (see below), whose sum is σ = 15353184. Its totient is φ = 11456640.

The previous prime is 13400041. The next prime is 13400077. The reversal of 13400051 is 15000431.

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 13400051 - 210 = 13399027 is a prime.

It is a super-2 number, since 2×134000512 = 359122733605202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13399999 and 13400035.

It is not an unprimeable number, because it can be changed into a prime (13400041) 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, 821 + ... + 5241.

It is an arithmetic number, because the mean of its divisors is an integer number (1919148).

Almost surely, 213400051 is an apocalyptic number.

13400051 is a deficient number, since it is larger than the sum of its proper divisors (1953133).

13400051 is an equidigital number, since it uses as much as digits as its factorization.

13400051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 13400051 is about 3660.6080096071. The cubic root of 13400051 is about 237.5210751381.

Adding to 13400051 its reverse (15000431), we get a palindrome (28400482).

The spelling of 13400051 in words is "thirteen million, four hundred thousand, fifty-one".

Divisors: 1 7 433 3031 4421 30947 1914293 13400051