Search a number
-
+
145359911 = 178550583
BaseRepresentation
bin10001010101000…
…00010000100111
3101010112001022102
420222200100213
5244203004121
622231322315
73413352554
oct1052402047
9333461272
10145359911
1175063064
124082039b
1324165ba8
141543ba2b
15cb6490b
hex8aa0427

145359911 has 4 divisors (see below), whose sum is σ = 153910512. Its totient is φ = 136809312.

The previous prime is 145359901. The next prime is 145359913. The reversal of 145359911 is 119953541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145359911 is a prime.

It is a super-2 number, since 2×1453599112 = 42259007451855842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145359913) 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, 4275275 + ... + 4275308.

It is an arithmetic number, because the mean of its divisors is an integer number (38477628).

Almost surely, 2145359911 is an apocalyptic number.

145359911 is a deficient number, since it is larger than the sum of its proper divisors (8550601).

145359911 is an equidigital number, since it uses as much as digits as its factorization.

145359911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8550600.

The product of its digits is 24300, while the sum is 38.

The square root of 145359911 is about 12056.5298075358. The cubic root of 145359911 is about 525.7931003034.

The spelling of 145359911 in words is "one hundred forty-five million, three hundred fifty-nine thousand, nine hundred eleven".

Divisors: 1 17 8550583 145359911