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13422455 = 519236143
BaseRepresentation
bin110011001100…
…111101110111
3221020221010222
4303030331313
511414004310
61155404555
7222042344
oct63147567
927227128
1013422455
117638542
1245b375b
132a1c5a7
141ad57cb
1512a2055
hexcccf77

13422455 has 16 divisors (see below), whose sum is σ = 17694720. Its totient is φ = 9728928.

The previous prime is 13422439. The next prime is 13422463. The reversal of 13422455 is 55422431.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13422455 - 24 = 13422439 is a prime.

It is a congruent 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, 887 + ... + 5256.

It is an arithmetic number, because the mean of its divisors is an integer number (1105920).

Almost surely, 213422455 is an apocalyptic number.

13422455 is a deficient number, since it is larger than the sum of its proper divisors (4272265).

13422455 is a wasteful number, since it uses less digits than its factorization.

13422455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6190.

The product of its digits is 4800, while the sum is 26.

The square root of 13422455 is about 3663.6668789616. Note that the first 3 decimals coincide. The cubic root of 13422455 is about 237.6533746154.

Adding to 13422455 its reverse (55422431), we get a palindrome (68844886).

The spelling of 13422455 in words is "thirteen million, four hundred twenty-two thousand, four hundred fifty-five".

Divisors: 1 5 19 23 95 115 437 2185 6143 30715 116717 141289 583585 706445 2684491 13422455