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11930477 = 13917729
BaseRepresentation
bin101101100000…
…101101101101
3211110010112112
4231200231231
511023233402
61103413405
7203256506
oct55405555
924403475
1011930477
1168095a9
123bb4265
132619470
141827bad
1510a9e52
hexb60b6d

11930477 has 4 divisors (see below), whose sum is σ = 12848220. Its totient is φ = 11012736.

The previous prime is 11930473. The next prime is 11930483. The reversal of 11930477 is 77403911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77403911 = 135954147.

It can be written as a sum of positive squares in 2 ways, for example, as 1811716 + 10118761 = 1346^2 + 3181^2 .

It is a cyclic number.

It is not a de Polignac number, because 11930477 - 22 = 11930473 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 (11930473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458852 + ... + 458877.

It is an arithmetic number, because the mean of its divisors is an integer number (3212055).

Almost surely, 211930477 is an apocalyptic number.

It is an amenable number.

11930477 is a deficient number, since it is larger than the sum of its proper divisors (917743).

11930477 is an equidigital number, since it uses as much as digits as its factorization.

11930477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917742.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 11930477 is about 3454.0522578560. The cubic root of 11930477 is about 228.4998587495.

The spelling of 11930477 in words is "eleven million, nine hundred thirty thousand, four hundred seventy-seven".

Divisors: 1 13 917729 11930477