Search a number
-
+
26448957 = 3317291987
BaseRepresentation
bin110010011100…
…1010000111101
31211202202011000
41210321100331
523232331312
62342520513
7440545443
oct144712075
954682130
1026448957
1113a25547
128a36139
135630892
143726b93
1524c6adc
hex193943d

26448957 has 32 divisors (see below), whose sum is σ = 42940800. Its totient is φ = 16015104.

The previous prime is 26448937. The next prime is 26448967. The reversal of 26448957 is 75984462.

It is a happy number.

It is not a de Polignac number, because 26448957 - 212 = 26444861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26448937) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 12318 + ... + 14304.

It is an arithmetic number, because the mean of its divisors is an integer number (1341900).

Almost surely, 226448957 is an apocalyptic number.

26448957 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

26448957 is a deficient number, since it is larger than the sum of its proper divisors (16491843).

26448957 is a wasteful number, since it uses less digits than its factorization.

26448957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042 (or 2036 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 26448957 is about 5142.8549464281. The cubic root of 26448957 is about 297.9450561586.

The spelling of 26448957 in words is "twenty-six million, four hundred forty-eight thousand, nine hundred fifty-seven".

Divisors: 1 3 9 17 27 29 51 87 153 261 459 493 783 1479 1987 4437 5961 13311 17883 33779 53649 57623 101337 172869 304011 518607 912033 979591 1555821 2938773 8816319 26448957