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13001415 = 3574192
BaseRepresentation
bin110001100110…
…001011000111
3220110112120220
4301212023013
511312021130
61142355423
7215340000
oct61461307
926415526
1013001415
117380179
12442bb73
132902a5b
141a261a7
15121c410
hexc662c7

13001415 has 60 divisors (see below), whose sum is σ = 25612344. Its totient is φ = 5630688.

The previous prime is 13001407. The next prime is 13001459. The reversal of 13001415 is 51410031.

13001415 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 is not a de Polignac number, because 13001415 - 23 = 13001407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 13001394 and 13001403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 684276 + ... + 684294.

Almost surely, 213001415 is an apocalyptic number.

13001415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13001415 is a deficient number, since it is larger than the sum of its proper divisors (12610929).

13001415 is an frugal number, since it uses more digits than its factorization.

13001415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 13001415 is about 3605.7474953191. The cubic root of 13001415 is about 235.1419995871.

Multiplying 13001415 by its sum of digits (15), we get a square (195021225 = 139652).

13001415 divided by its sum of digits (15) gives a square (866761 = 9312).

Multiplying 13001415 by its product of nonzero digits (60), we get a square (780084900 = 279302).

Adding to 13001415 its reverse (51410031), we get a palindrome (64411446).

The spelling of 13001415 in words is "thirteen million, one thousand, four hundred fifteen".

Divisors: 1 3 5 7 15 19 21 35 49 57 95 105 133 147 245 285 343 361 399 665 735 931 1029 1083 1715 1805 1995 2401 2527 2793 4655 5145 5415 6517 7203 7581 12005 12635 13965 17689 19551 32585 36015 37905 45619 53067 88445 97755 123823 136857 228095 265335 371469 619115 684285 866761 1857345 2600283 4333805 13001415