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16125705 = 325358349
BaseRepresentation
bin111101100000…
…111100001001
31010100021022100
4331200330021
513112010310
61333344013
7254031501
oct75407411
933307270
1016125705
119114532
125498009
133457b4b
1421daa01
151637ec0
hexf60f09

16125705 has 12 divisors (see below), whose sum is σ = 27951300. Its totient is φ = 8600352.

The previous prime is 16125689. The next prime is 16125721. The reversal of 16125705 is 50752161.

16125705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16125689) and next prime (16125721).

It can be written as a sum of positive squares in 2 ways, for example, as 3337929 + 12787776 = 1827^2 + 3576^2 .

It is not a de Polignac number, because 16125705 - 24 = 16125689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179130 + ... + 179219.

It is an arithmetic number, because the mean of its divisors is an integer number (2329275).

Almost surely, 216125705 is an apocalyptic number.

16125705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16125705 is a deficient number, since it is larger than the sum of its proper divisors (11825595).

16125705 is a wasteful number, since it uses less digits than its factorization.

16125705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358360 (or 358357 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 16125705 is about 4015.6823828585. The cubic root of 16125705 is about 252.6423991733.

Adding to 16125705 its reverse (50752161), we get a palindrome (66877866).

The spelling of 16125705 in words is "sixteen million, one hundred twenty-five thousand, seven hundred five".

Divisors: 1 3 5 9 15 45 358349 1075047 1791745 3225141 5375235 16125705