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101401131 = 31310325243
BaseRepresentation
bin1100000101101…
…00001000101011
321001210201012110
412002310020223
5201424314011
614021213403
72340616056
oct602641053
9231721173
10101401131
1152269197
1229b61263
1318014490
14d677a9d
158d7eba6
hex60b422b

101401131 has 16 divisors (see below), whose sum is σ = 147021056. Its totient is φ = 61792416.

The previous prime is 101401129. The next prime is 101401151. The reversal of 101401131 is 131104101.

It is not a de Polignac number, because 101401131 - 21 = 101401129 is a prime.

It is a super-2 number, since 2×1014011312 = 20564378736158322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101401151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8605 + ... + 16638.

It is an arithmetic number, because the mean of its divisors is an integer number (9188816).

Almost surely, 2101401131 is an apocalyptic number.

101401131 is a deficient number, since it is larger than the sum of its proper divisors (45619925).

101401131 is a wasteful number, since it uses less digits than its factorization.

101401131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25362.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 101401131 is about 10069.8128582412. The cubic root of 101401131 is about 466.3166614240.

Adding to 101401131 its reverse (131104101), we get a palindrome (232505232).

The spelling of 101401131 in words is "one hundred one million, four hundred one thousand, one hundred thirty-one".

Divisors: 1 3 13 39 103 309 1339 4017 25243 75729 328159 984477 2600029 7800087 33800377 101401131