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26163136 = 2617139173
BaseRepresentation
bin110001111001…
…1011111000000
31211020020002001
41203303133000
523144210021
62332433344
7435245236
oct143633700
954206061
1026163136
111384a82a
128918854
13556075c
143690956
15246c091
hex18f37c0

26163136 has 56 divisors (see below), whose sum is σ = 55686960. Its totient is φ = 12152832.

The previous prime is 26163103. The next prime is 26163149. The reversal of 26163136 is 63136162.

It is a super-4 number, since 4×261631364 (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151146 + ... + 151318.

It is an arithmetic number, because the mean of its divisors is an integer number (994410).

Almost surely, 226163136 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 26163136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27843480).

26163136 is an abundant number, since it is smaller than the sum of its proper divisors (29523824).

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

26163136 is a wasteful number, since it uses less digits than its factorization.

26163136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 331 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 26163136 is about 5114.9913000904. The cubic root of 26163136 is about 296.8679177036.

Adding to 26163136 its reverse (63136162), we get a palindrome (89299298).

The spelling of 26163136 in words is "twenty-six million, one hundred sixty-three thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 17 32 34 64 68 136 139 173 272 278 346 544 556 692 1088 1112 1384 2224 2363 2768 2941 4448 4726 5536 5882 8896 9452 11072 11764 18904 23528 24047 37808 47056 48094 75616 94112 96188 151232 188224 192376 384752 408799 769504 817598 1539008 1635196 3270392 6540784 13081568 26163136