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11897379 = 3213611667
BaseRepresentation
bin101101011000…
…101000100011
3211101110010200
4231120220203
511021204004
61103000243
7203061144
oct55305043
924343120
1011897379
11679674a
123b99083
132607390
141819acb
1510a0239
hexb58a23

11897379 has 24 divisors (see below), whose sum is σ = 18821712. Its totient is φ = 7197120.

The previous prime is 11897377. The next prime is 11897393. The reversal of 11897379 is 97379811.

It is not a de Polignac number, because 11897379 - 21 = 11897377 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6304 + ... + 7970.

It is an arithmetic number, because the mean of its divisors is an integer number (784238).

Almost surely, 211897379 is an apocalyptic number.

11897379 is a deficient number, since it is larger than the sum of its proper divisors (6924333).

11897379 is a wasteful number, since it uses less digits than its factorization.

11897379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747 (or 1744 counting only the distinct ones).

The product of its digits is 95256, while the sum is 45.

The square root of 11897379 is about 3449.2577462405. The cubic root of 11897379 is about 228.2883586036.

The spelling of 11897379 in words is "eleven million, eight hundred ninety-seven thousand, three hundred seventy-nine".

Divisors: 1 3 9 13 39 61 117 183 549 793 1667 2379 5001 7137 15003 21671 65013 101687 195039 305061 915183 1321931 3965793 11897379