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119431945 = 5181131969
BaseRepresentation
bin1110001111001…
…10001100001001
322022201202211101
413013212030021
5221033310240
615503501401
72650104043
oct707461411
9268652741
10119431945
1161463a96
1233bb7861
131b9884b9
1411c0ca93
15a74239a
hex71e6309

119431945 has 8 divisors (see below), whose sum is σ = 144111240. Its totient is φ = 95016960.

The previous prime is 119431927. The next prime is 119431999. The reversal of 119431945 is 549134911.

It can be written as a sum of positive squares in 4 ways, for example, as 7241481 + 112190464 = 2691^2 + 10592^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 119431945 - 25 = 119431913 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 65080 + ... + 66889.

It is an arithmetic number, because the mean of its divisors is an integer number (18013905).

Almost surely, 2119431945 is an apocalyptic number.

It is an amenable number.

119431945 is a deficient number, since it is larger than the sum of its proper divisors (24679295).

119431945 is a wasteful number, since it uses less digits than its factorization.

119431945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132155.

The product of its digits is 19440, while the sum is 37.

The square root of 119431945 is about 10928.4923479865. The cubic root of 119431945 is about 492.4628812414.

The spelling of 119431945 in words is "one hundred nineteen million, four hundred thirty-one thousand, nine hundred forty-five".

Divisors: 1 5 181 905 131969 659845 23886389 119431945