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101968769 = 714566967
BaseRepresentation
bin1100001001111…
…10101110000001
321002212112212002
412010332232001
5202101000034
614041313345
72345502020
oct604765601
9232775762
10101968769
1152616711
122a195855
1318182966
14d7848b7
158e42e7e
hex613eb81

101968769 has 4 divisors (see below), whose sum is σ = 116535744. Its totient is φ = 87401796.

The previous prime is 101968751. The next prime is 101968799. The reversal of 101968769 is 967869101.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101968769 is a prime.

It is a super-2 number, since 2×1019687692 = 20795259702750722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101968739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7283477 + ... + 7283490.

It is an arithmetic number, because the mean of its divisors is an integer number (29133936).

Almost surely, 2101968769 is an apocalyptic number.

It is an amenable number.

101968769 is a deficient number, since it is larger than the sum of its proper divisors (14566975).

101968769 is an equidigital number, since it uses as much as digits as its factorization.

101968769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14566974.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 101968769 is about 10097.9586550946. The cubic root of 101968769 is about 467.1851812035.

The spelling of 101968769 in words is "one hundred one million, nine hundred sixty-eight thousand, seven hundred sixty-nine".

Divisors: 1 7 14566967 101968769