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145250441 = 7163127301
BaseRepresentation
bin10001010100001…
…01100010001001
3101010022111010222
420222011202021
5244141003231
622225115425
73412415450
oct1052054211
9333274128
10145250441
1174a98896
1240788b75
132412810b
141540db97
15cb4227b
hex8a85889

145250441 has 8 divisors (see below), whose sum is σ = 167020224. Its totient is φ = 123735600.

The previous prime is 145250411. The next prime is 145250453. The reversal of 145250441 is 144052541.

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

It is a cyclic number.

It is not a de Polignac number, because 145250441 - 214 = 145234057 is a prime.

It is a super-2 number, since 2×1452504412 = 42195381221388962, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145250441.

It is not an unprimeable number, because it can be changed into a prime (145250401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62510 + ... + 64791.

It is an arithmetic number, because the mean of its divisors is an integer number (20877528).

Almost surely, 2145250441 is an apocalyptic number.

It is an amenable number.

145250441 is a deficient number, since it is larger than the sum of its proper divisors (21769783).

145250441 is a wasteful number, since it uses less digits than its factorization.

145250441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127471.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 145250441 is about 12051.9890889430. The cubic root of 145250441 is about 525.6610762229.

The spelling of 145250441 in words is "one hundred forty-five million, two hundred fifty thousand, four hundred forty-one".

Divisors: 1 7 163 1141 127301 891107 20750063 145250441