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6671413 = 719103487
BaseRepresentation
bin11001011100110000110101
3110112221110101
4121130300311
53201441123
6354554101
7110464120
oct31346065
913487411
106671413
113847371
122298931
1314c77a8
14c593b7
158bbaad
hex65cc35

6671413 has 16 divisors (see below), whose sum is σ = 8120320. Its totient is φ = 5353776.

The previous prime is 6671411. The next prime is 6671443. The reversal of 6671413 is 3141766.

It is a 5-Lehmer number, since φ(6671413) divides (6671413-1)5.

It is a cyclic number.

It is not a de Polignac number, because 6671413 - 21 = 6671411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6671411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13456 + ... + 13942.

It is an arithmetic number, because the mean of its divisors is an integer number (507520).

Almost surely, 26671413 is an apocalyptic number.

It is an amenable number.

6671413 is a deficient number, since it is larger than the sum of its proper divisors (1448907).

6671413 is a wasteful number, since it uses less digits than its factorization.

6671413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616.

The product of its digits is 3024, while the sum is 28.

The square root of 6671413 is about 2582.9078574351. The cubic root of 6671413 is about 188.2518598874.

It can be divided in two parts, 667 and 1413, that added together give a triangular number (2080 = T64).

The spelling of 6671413 in words is "six million, six hundred seventy-one thousand, four hundred thirteen".

Divisors: 1 7 19 103 133 487 721 1957 3409 9253 13699 50161 64771 351127 953059 6671413