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131880026 = 21941471801
BaseRepresentation
bin1111101110001…
…01010001011010
3100012011012101102
413313011101122
5232230130101
621030351402
73160650605
oct767052132
9305135342
10131880026
1168496463
12381bb562
1321426425
141372d33c
15b8a086b
hex7dc545a

131880026 has 32 divisors (see below), whose sum is σ = 217969920. Its totient is φ = 59616000.

The previous prime is 131880019. The next prime is 131880029. The reversal of 131880026 is 620088131.

It is not an unprimeable number, because it can be changed into a prime (131880029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72326 + ... + 74126.

It is an arithmetic number, because the mean of its divisors is an integer number (6811560).

Almost surely, 2131880026 is an apocalyptic number.

131880026 is a deficient number, since it is larger than the sum of its proper divisors (86089894).

131880026 is a wasteful number, since it uses less digits than its factorization.

131880026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 131880026 is about 11483.9029079839. The cubic root of 131880026 is about 509.0100314140.

The spelling of 131880026 in words is "one hundred thirty-one million, eight hundred eighty thousand, twenty-six".

Divisors: 1 2 19 38 41 47 82 94 779 893 1558 1786 1801 1927 3602 3854 34219 36613 68438 73226 73841 84647 147682 169294 1402979 1608293 2805958 3216586 3470527 6941054 65940013 131880026