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12054473477 = 15859760103
BaseRepresentation
bin10110011101000000…
…01010101100000101
31011010002121200220122
423032200022230011
5144141421122402
65312053111325
7604502222354
oct131640125405
934102550818
1012054473477
115126488382
122405028545
1311a1528157
14824d5b99b
154a8430ca2
hex2ce80ab05

12054473477 has 4 divisors (see below), whose sum is σ = 12055249440. Its totient is φ = 12053697516.

The previous prime is 12054473467. The next prime is 12054473503. The reversal of 12054473477 is 77437445021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77437445021 = 100801768221.

It is a cyclic number.

It is not a de Polignac number, because 12054473477 - 218 = 12054211333 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 (12054473447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364193 + ... + 395910.

It is an arithmetic number, because the mean of its divisors is an integer number (3013812360).

Almost surely, 212054473477 is an apocalyptic number.

It is an amenable number.

12054473477 is a deficient number, since it is larger than the sum of its proper divisors (775963).

12054473477 is an equidigital number, since it uses as much as digits as its factorization.

12054473477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775962.

The product of its (nonzero) digits is 658560, while the sum is 44.

The spelling of 12054473477 in words is "twelve billion, fifty-four million, four hundred seventy-three thousand, four hundred seventy-seven".

Divisors: 1 15859 760103 12054473477