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16312461 = 311494317
BaseRepresentation
bin111110001110…
…100010001101
31010200202111020
4332032202031
513133444321
61341344353
7255440124
oct76164215
933622436
1016312461
119231880
1255680b9
1334c1b59
142248abb
1516734c6
hexf8e88d

16312461 has 8 divisors (see below), whose sum is σ = 23727264. Its totient is φ = 9886320.

The previous prime is 16312459. The next prime is 16312489. The reversal of 16312461 is 16421361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16312461 - 21 = 16312459 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16312421) 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 7 ways as a sum of consecutive naturals, for example, 247126 + ... + 247191.

It is an arithmetic number, because the mean of its divisors is an integer number (2965908).

Almost surely, 216312461 is an apocalyptic number.

16312461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16312461 is a deficient number, since it is larger than the sum of its proper divisors (7414803).

16312461 is a wasteful number, since it uses less digits than its factorization.

16312461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494331.

The product of its digits is 864, while the sum is 24.

The square root of 16312461 is about 4038.8687772692. The cubic root of 16312461 is about 253.6139639851.

Subtracting 16312461 from its reverse (16421361), we obtain a square (108900 = 3302).

The spelling of 16312461 in words is "sixteen million, three hundred twelve thousand, four hundred sixty-one".

Divisors: 1 3 11 33 494317 1482951 5437487 16312461