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101530969 = 242341903
BaseRepresentation
bin1100000110100…
…11110101011001
321002001022022021
412003103311121
5201442442334
614024054441
72341666441
oct603236531
9232038267
10101530969
11523477a1
122a004421
131805b5c7
14d6ad121
158da83b4
hex60d3d59

101530969 has 4 divisors (see below), whose sum is σ = 101575296. Its totient is φ = 101486644.

The previous prime is 101530939. The next prime is 101530981. The reversal of 101530969 is 969035101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 969035101 = 1516417451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101530969 is a prime.

It is a super-2 number, since 2×1015309692 = 20617075332157922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101530939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18529 + ... + 23374.

It is an arithmetic number, because the mean of its divisors is an integer number (25393824).

Almost surely, 2101530969 is an apocalyptic number.

It is an amenable number.

101530969 is a deficient number, since it is larger than the sum of its proper divisors (44327).

101530969 is an equidigital number, since it uses as much as digits as its factorization.

101530969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44326.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 101530969 is about 10076.2576882491. The cubic root of 101530969 is about 466.5156066060.

The spelling of 101530969 in words is "one hundred one million, five hundred thirty thousand, nine hundred sixty-nine".

Divisors: 1 2423 41903 101530969