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131007826158 = 231110967327059
BaseRepresentation
bin111101000000010101…
…1001100100011101110
3110112011011100010012120
41322000223030203232
54121301000414113
6140103440213410
712315332102016
oct1720053144356
9415134303176
10131007826158
1150618558910
122148230a266
13c47a921c81
1464ab292c46
15361b58da23
hex1e80acc8ee

131007826158 has 64 divisors (see below), whose sum is σ = 288896889600. Its totient is φ = 39275228160.

The previous prime is 131007826151. The next prime is 131007826199. The reversal of 131007826158 is 851628700131.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131007826151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4828033 + ... + 4855091.

It is an arithmetic number, because the mean of its divisors is an integer number (4514013900).

Almost surely, 2131007826158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131007826158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144448444800).

131007826158 is an abundant number, since it is smaller than the sum of its proper divisors (157889063442).

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

131007826158 is a wasteful number, since it uses less digits than its factorization.

131007826158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27857.

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 131007826158 in words is "one hundred thirty-one billion, seven million, eight hundred twenty-six thousand, one hundred fifty-eight".

Divisors: 1 2 3 6 11 22 33 66 109 218 327 654 673 1199 1346 2019 2398 3597 4038 7194 7403 14806 22209 27059 44418 54118 73357 81177 146714 162354 220071 297649 440142 595298 806927 892947 1613854 1785894 2420781 2949431 4841562 5898862 8848293 17696586 18210707 32443741 36421414 54632121 64887482 97331223 109264242 194662446 200317777 400635554 600953331 1201906662 1984967063 3969934126 5954901189 11909802378 21834637693 43669275386 65503913079 131007826158