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13315473 = 321479497
BaseRepresentation
bin110010110010…
…110110010001
3221001111101200
4302302312101
511402043343
61153221413
7221115423
oct62626621
927044350
1013315473
117575126
124561869
1329b29a2
141aa8813
1512804d3
hexcb2d91

13315473 has 6 divisors (see below), whose sum is σ = 19233474. Its totient is φ = 8876976.

The previous prime is 13315469. The next prime is 13315483. The reversal of 13315473 is 37451331.

13315473 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13307904 + 7569 = 3648^2 + 87^2 .

It is not a de Polignac number, because 13315473 - 22 = 13315469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13315453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 739740 + ... + 739757.

It is an arithmetic number, because the mean of its divisors is an integer number (3205579).

Almost surely, 213315473 is an apocalyptic number.

It is an amenable number.

13315473 is a deficient number, since it is larger than the sum of its proper divisors (5918001).

13315473 is a wasteful number, since it uses less digits than its factorization.

13315473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479503 (or 1479500 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 13315473 is about 3649.0372702947. The cubic root of 13315473 is about 237.0202941549.

The spelling of 13315473 in words is "thirteen million, three hundred fifteen thousand, four hundred seventy-three".

Divisors: 1 3 9 1479497 4438491 13315473