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105944897 = 772713711
BaseRepresentation
bin1100101000010…
…01011101000001
321101100120002002
412110021131001
5204110214042
614302433345
72424342152
oct624113501
9241316062
10105944897
1154891a73
122b592855
1318c456b6
14100db929
15947b132
hex6509741

105944897 has 4 divisors (see below), whose sum is σ = 105966336. Its totient is φ = 105923460.

The previous prime is 105944879. The next prime is 105944899. The reversal of 105944897 is 798449501.

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-105944897 is a prime.

It is a super-2 number, since 2×1059448972 = 22448642400681218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105944899) 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, 872 + ... + 14582.

It is an arithmetic number, because the mean of its divisors is an integer number (26491584).

Almost surely, 2105944897 is an apocalyptic number.

It is an amenable number.

105944897 is a deficient number, since it is larger than the sum of its proper divisors (21439).

105944897 is an equidigital number, since it uses as much as digits as its factorization.

105944897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21438.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 105944897 is about 10292.9537548752. The cubic root of 105944897 is about 473.1803280618.

The spelling of 105944897 in words is "one hundred five million, nine hundred forty-four thousand, eight hundred ninety-seven".

Divisors: 1 7727 13711 105944897