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13790554 = 226925633
BaseRepresentation
bin110100100110…
…110101011010
3221221122002021
4310212311122
512012244204
61211325054
7225134461
oct64466532
927848067
1013790554
11786a058
12475078a
132b1acbb
141b8d9d8
151326154
hexd26d5a

13790554 has 8 divisors (see below), whose sum is σ = 20763540. Its totient is φ = 6869376.

The previous prime is 13790551. The next prime is 13790563. The reversal of 13790554 is 45509731.

It can be written as a sum of positive squares in 2 ways, for example, as 12285025 + 1505529 = 3505^2 + 1227^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13790551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12279 + ... + 13354.

Almost surely, 213790554 is an apocalyptic number.

13790554 is a deficient number, since it is larger than the sum of its proper divisors (6972986).

13790554 is a wasteful number, since it uses less digits than its factorization.

13790554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25904.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 13790554 is about 3713.5635177010. The cubic root of 13790554 is about 239.8062904539.

The spelling of 13790554 in words is "thirteen million, seven hundred ninety thousand, five hundred fifty-four".

Divisors: 1 2 269 538 25633 51266 6895277 13790554