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16115264 = 261122081
BaseRepresentation
bin111101011110…
…011001000000
31010022201222122
4331132121000
513111142024
61333223412
7253656164
oct75363100
933281878
1016115264
119107700
125491b68
133453179
1421d6ca4
151634d5e
hexf5e640

16115264 has 42 divisors (see below), whose sum is σ = 35167062. Its totient is φ = 7321600.

The previous prime is 16115263. The next prime is 16115273. The reversal of 16115264 is 46251161.

16115264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13017664 + 3097600 = 3608^2 + 1760^2 .

It is not an unprimeable number, because it can be changed into a prime (16115263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6704 + ... + 8784.

It is an arithmetic number, because the mean of its divisors is an integer number (837311).

Almost surely, 216115264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16115264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17583531).

16115264 is an abundant number, since it is smaller than the sum of its proper divisors (19051798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16115264 is a wasteful number, since it uses less digits than its factorization.

16115264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2094 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 16115264 is about 4014.3821442409. The cubic root of 16115264 is about 252.5878608073.

The spelling of 16115264 in words is "sixteen million, one hundred fifteen thousand, two hundred sixty-four".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 176 242 352 484 704 968 1936 2081 3872 4162 7744 8324 16648 22891 33296 45782 66592 91564 133184 183128 251801 366256 503602 732512 1007204 1465024 2014408 4028816 8057632 16115264