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13320473 = 231314421
BaseRepresentation
bin110010110100…
…000100011001
3221001202020212
4302310010121
511402223343
61153300505
7221136125
oct62640431
927052225
1013320473
117578961
124564735
1329b504a
141aaa585
151281c18
hexcb4119

13320473 has 8 divisors (see below), whose sum is σ = 14008896. Its totient is φ = 12641200.

The previous prime is 13320467. The next prime is 13320479. The reversal of 13320473 is 37402331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13320467) and next prime (13320479).

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 13320473 - 24 = 13320457 is a prime.

It is a super-4 number, since 4×133204734 (a number of 30 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13320479) 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, 803 + ... + 5223.

It is an arithmetic number, because the mean of its divisors is an integer number (1751112).

Almost surely, 213320473 is an apocalyptic number.

It is an amenable number.

13320473 is a deficient number, since it is larger than the sum of its proper divisors (688423).

13320473 is a wasteful number, since it uses less digits than its factorization.

13320473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 13320473 is about 3649.7223182045. The cubic root of 13320473 is about 237.0499577191.

The spelling of 13320473 in words is "thirteen million, three hundred twenty thousand, four hundred seventy-three".

Divisors: 1 23 131 3013 4421 101683 579151 13320473