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145543937 = 7112637187
BaseRepresentation
bin10001010110011…
…01001100000001
3101010212101202012
420223031030001
5244224401222
622235302305
73415050230
oct1053151401
9333771665
10145543937
1175179350
12408aa995
13241cb896
1415488b17
15cb9e1e2
hex8acd301

145543937 has 16 divisors (see below), whose sum is σ = 182172672. Its totient is φ = 112963920.

The previous prime is 145543907. The next prime is 145543939. The reversal of 145543937 is 739345541.

It is a cyclic number.

It is not a de Polignac number, because 145543937 - 26 = 145543873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145543894 and 145543903.

It is not an unprimeable number, because it can be changed into a prime (145543939) 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 15 ways as a sum of consecutive naturals, for example, 16658 + ... + 23844.

It is an arithmetic number, because the mean of its divisors is an integer number (11385792).

Almost surely, 2145543937 is an apocalyptic number.

It is an amenable number.

145543937 is a deficient number, since it is larger than the sum of its proper divisors (36628735).

145543937 is a wasteful number, since it uses less digits than its factorization.

145543937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7468.

The product of its digits is 226800, while the sum is 41.

The square root of 145543937 is about 12064.1591915889. The cubic root of 145543937 is about 526.0148918471.

The spelling of 145543937 in words is "one hundred forty-five million, five hundred forty-three thousand, nine hundred thirty-seven".

Divisors: 1 7 11 77 263 1841 2893 7187 20251 50309 79057 553399 1890181 13231267 20791991 145543937