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13742555 = 513120981
BaseRepresentation
bin110100011011…
…000111011011
3221212012020112
4310123013123
512004230210
61210314535
7224544521
oct64330733
927765215
1013742555
117836a92
124728a4b
132b021b8
141b7a311
151316d05
hexd1b1db

13742555 has 8 divisors (see below), whose sum is σ = 16617744. Its totient is φ = 10909600.

The previous prime is 13742551. The next prime is 13742557. The reversal of 13742555 is 55524731.

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

It is not a de Polignac number, because 13742555 - 22 = 13742551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13742551) 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, 9836 + ... + 11145.

It is an arithmetic number, because the mean of its divisors is an integer number (2077218).

Almost surely, 213742555 is an apocalyptic number.

13742555 is a deficient number, since it is larger than the sum of its proper divisors (2875189).

13742555 is a wasteful number, since it uses less digits than its factorization.

13742555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21117.

The product of its digits is 21000, while the sum is 32.

The square root of 13742555 is about 3707.0952240265. The cubic root of 13742555 is about 239.5277461125.

The spelling of 13742555 in words is "thirteen million, seven hundred forty-two thousand, five hundred fifty-five".

Divisors: 1 5 131 655 20981 104905 2748511 13742555