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145976041 = 1047713933
BaseRepresentation
bin10001011001101…
…10101011101001
3101011200100111001
420230312223221
5244332213131
622252435001
73421530061
oct1054665351
9334610431
10145976041
1175443a62
1240a78a61
1324320473
141555c3a1
15cc37261
hex8b36ae9

145976041 has 4 divisors (see below), whose sum is σ = 146000452. Its totient is φ = 145951632.

The previous prime is 145976027. The next prime is 145976087. The reversal of 145976041 is 140679541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 134652816 + 11323225 = 11604^2 + 3365^2 .

It is a cyclic number.

It is not a de Polignac number, because 145976041 - 223 = 137587433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145976011) 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, 3511 + ... + 17443.

It is an arithmetic number, because the mean of its divisors is an integer number (36500113).

Almost surely, 2145976041 is an apocalyptic number.

It is an amenable number.

145976041 is a deficient number, since it is larger than the sum of its proper divisors (24411).

145976041 is a wasteful number, since it uses less digits than its factorization.

145976041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24410.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 145976041 is about 12082.0545024429. The cubic root of 145976041 is about 526.5349377238.

The spelling of 145976041 in words is "one hundred forty-five million, nine hundred seventy-six thousand, forty-one".

Divisors: 1 10477 13933 145976041