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101531707 = 486120887
BaseRepresentation
bin1100000110101…
…00000000111011
321002001100022121
412003110000323
5201443003312
614024102111
72342001544
oct603240073
9232040277
10101531707
1152348302
122a004937
131805ba44
14d6ad4cb
158da8707
hex60d403b

101531707 has 4 divisors (see below), whose sum is σ = 101557456. Its totient is φ = 101505960.

The previous prime is 101531699. The next prime is 101531711. The reversal of 101531707 is 707135101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 707135101 = 2924383969.

It is a cyclic number.

It is not a de Polignac number, because 101531707 - 23 = 101531699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101531777) 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 3 ways as a sum of consecutive naturals, for example, 5583 + ... + 15304.

It is an arithmetic number, because the mean of its divisors is an integer number (25389364).

Almost surely, 2101531707 is an apocalyptic number.

101531707 is a deficient number, since it is larger than the sum of its proper divisors (25749).

101531707 is an equidigital number, since it uses as much as digits as its factorization.

101531707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25748.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 101531707 is about 10076.2943089213. The cubic root of 101531707 is about 466.5167369267.

Adding to 101531707 its reverse (707135101), we get a palindrome (808666808).

The spelling of 101531707 in words is "one hundred one million, five hundred thirty-one thousand, seven hundred seven".

Divisors: 1 4861 20887 101531707