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16243007 = 111786861
BaseRepresentation
bin111101111101…
…100100111111
31010120020012212
4331331210333
513124234012
61340051035
7255030464
oct75754477
933506185
1016243007
119194680
125533a7b
133499361
14222b66b
15165cb22
hexf7d93f

16243007 has 8 divisors (see below), whose sum is σ = 18762192. Its totient is φ = 13897600.

The previous prime is 16242983. The next prime is 16243009. The reversal of 16243007 is 70034261.

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

It is a cyclic number.

It is not a de Polignac number, because 16243007 - 26 = 16242943 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 (16243009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43244 + ... + 43617.

It is an arithmetic number, because the mean of its divisors is an integer number (2345274).

Almost surely, 216243007 is an apocalyptic number.

16243007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16243007 is a deficient number, since it is larger than the sum of its proper divisors (2519185).

16243007 is a wasteful number, since it uses less digits than its factorization.

16243007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86889.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 16243007 is about 4030.2614059140. The cubic root of 16243007 is about 253.2535122870.

Adding to 16243007 its reverse (70034261), we get a palindrome (86277268).

The spelling of 16243007 in words is "sixteen million, two hundred forty-three thousand, seven".

Divisors: 1 11 17 187 86861 955471 1476637 16243007