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26031231048 = 2331957086033
BaseRepresentation
bin11000001111100101…
…010001000001001000
32111012011100112212110
4120033211101001020
5411302443343143
615543015342320
71611035545614
oct301745210110
974164315773
1026031231048
1110048a51199
1250659819a0
1325bb089ac4
14138d304344
15a254c2533
hex60f951048

26031231048 has 32 divisors (see below), whose sum is σ = 68503240800. Its totient is φ = 8220388608.

The previous prime is 26031231043. The next prime is 26031231049. The reversal of 26031231048 is 84013213062.

It is not an unprimeable number, because it can be changed into a prime (26031231041) 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 7 ways as a sum of consecutive naturals, for example, 28542561 + ... + 28543472.

It is an arithmetic number, because the mean of its divisors is an integer number (2140726275).

Almost surely, 226031231048 is an apocalyptic number.

It is an amenable number.

26031231048 is an abundant number, since it is smaller than the sum of its proper divisors (42472009752).

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

26031231048 is a wasteful number, since it uses less digits than its factorization.

26031231048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57086061 (or 57086057 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 26031231048 in words is "twenty-six billion, thirty-one million, two hundred thirty-one thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 57086033 114172066 171258099 228344132 342516198 456688264 685032396 1084634627 1370064792 2169269254 3253903881 4338538508 6507807762 8677077016 13015615524 26031231048