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13764905 = 571135753
BaseRepresentation
bin110100100000…
…100100101001
3221220022220022
4310200210221
512010434110
61211010225
7224666630
oct64404451
927808808
1013764905
117851860
124739975
132b0c41b
141b84517
15131d755
hexd20929

13764905 has 16 divisors (see below), whose sum is σ = 20594304. Its totient is φ = 8580480.

The previous prime is 13764871. The next prime is 13764913. The reversal of 13764905 is 50946731.

It is not a de Polignac number, because 13764905 - 210 = 13763881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17492 + ... + 18261.

It is an arithmetic number, because the mean of its divisors is an integer number (1287144).

Almost surely, 213764905 is an apocalyptic number.

It is an amenable number.

13764905 is a deficient number, since it is larger than the sum of its proper divisors (6829399).

13764905 is a wasteful number, since it uses less digits than its factorization.

13764905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35776.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 13764905 is about 3710.1084889798. The cubic root of 13764905 is about 239.6575265786.

The spelling of 13764905 in words is "thirteen million, seven hundred sixty-four thousand, nine hundred five".

Divisors: 1 5 7 11 35 55 77 385 35753 178765 250271 393283 1251355 1966415 2752981 13764905