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16109801 = 31895839
BaseRepresentation
bin111101011101…
…000011101001
31010022110111022
4331131003221
513111003201
61333142225
7253634231
oct75350351
933273438
1016109801
119103594
12548a975
133450836
1421d4cc1
15163341b
hexf5d0e9

16109801 has 8 divisors (see below), whose sum is σ = 16819200. Its totient is φ = 15412320.

The previous prime is 16109791. The next prime is 16109809. The reversal of 16109801 is 10890161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16109801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16109809) 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, 161 + ... + 5678.

It is an arithmetic number, because the mean of its divisors is an integer number (2102400).

Almost surely, 216109801 is an apocalyptic number.

It is an amenable number.

16109801 is a deficient number, since it is larger than the sum of its proper divisors (709399).

16109801 is an equidigital number, since it uses as much as digits as its factorization.

16109801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 16109801 is about 4013.7016580708. The cubic root of 16109801 is about 252.5593155424.

Adding to 16109801 its reverse (10890161), we get a palindrome (26999962).

It can be divided in two parts, 1610 and 9801, that added together give a palindrome (11411).

The spelling of 16109801 in words is "sixteen million, one hundred nine thousand, eight hundred one".

Divisors: 1 31 89 2759 5839 181009 519671 16109801