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13457423 = 78921601
BaseRepresentation
bin110011010101…
…100000001111
3221022201010002
4303111200033
511421114143
61200234515
7222246320
oct63254017
927281102
1013457423
117661841
12460ba3b
132a32495
141b04447
1512ac5b8
hexcd580f

13457423 has 8 divisors (see below), whose sum is σ = 15553440. Its totient is φ = 11404800.

The previous prime is 13457417. The next prime is 13457429. The reversal of 13457423 is 32475431.

It is a happy number.

13457423 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13457417) and next prime (13457429).

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 13457423 - 24 = 13457407 is a prime.

It is a super-2 number, since 2×134574232 = 362204467601858, which contains 22 as substring.

13457423 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13457429) 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, 10178 + ... + 11423.

It is an arithmetic number, because the mean of its divisors is an integer number (1944180).

Almost surely, 213457423 is an apocalyptic number.

13457423 is a deficient number, since it is larger than the sum of its proper divisors (2096017).

13457423 is an equidigital number, since it uses as much as digits as its factorization.

13457423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21697.

The product of its digits is 10080, while the sum is 29.

The square root of 13457423 is about 3668.4360427844. The cubic root of 13457423 is about 237.8595727869.

The spelling of 13457423 in words is "thirteen million, four hundred fifty-seven thousand, four hundred twenty-three".

Divisors: 1 7 89 623 21601 151207 1922489 13457423