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16444051 = 131518377
BaseRepresentation
bin111110101110…
…101010010011
31010221102222221
4332232222103
513202202201
61344241511
7256525561
oct76565223
933842887
1016444051
119311728
125610297
133539a10
142280a31
15169c4a1
hexfaea93

16444051 has 8 divisors (see below), whose sum is σ = 17828384. Its totient is φ = 15076800.

The previous prime is 16444033. The next prime is 16444069. The reversal of 16444051 is 15044461.

It is an interprime number because it is at equal distance from previous prime (16444033) and next prime (16444069).

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 16444051 - 25 = 16444019 is a prime.

It is a super-3 number, since 3×164440513 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16444091) 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, 2226 + ... + 6151.

It is an arithmetic number, because the mean of its divisors is an integer number (2228548).

Almost surely, 216444051 is an apocalyptic number.

16444051 is a deficient number, since it is larger than the sum of its proper divisors (1384333).

16444051 is a wasteful number, since it uses less digits than its factorization.

16444051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8541.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 16444051 is about 4055.1265085075. The cubic root of 16444051 is about 254.2940927768.

The spelling of 16444051 in words is "sixteen million, four hundred forty-four thousand, fifty-one".

Divisors: 1 13 151 1963 8377 108901 1264927 16444051