Search a number
-
+
145227111 = 3142334019
BaseRepresentation
bin10001010011111…
…11110101100111
3101010021022010220
420221333311213
5244134231421
622224415423
73412260441
oct1051776547
9333238126
10145227111
1174a82307
1240777573
132411a603
1415405491
15cb3a3c6
hex8a7fd67

145227111 has 8 divisors (see below), whose sum is σ = 193777920. Its totient is φ = 96747192.

The previous prime is 145227079. The next prime is 145227113. The reversal of 145227111 is 111722541.

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

It is not a de Polignac number, because 145227111 - 25 = 145227079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145227113) 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, 12741 + ... + 21278.

It is an arithmetic number, because the mean of its divisors is an integer number (24222240).

Almost surely, 2145227111 is an apocalyptic number.

145227111 is a deficient number, since it is larger than the sum of its proper divisors (48550809).

145227111 is a wasteful number, since it uses less digits than its factorization.

145227111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35445.

The product of its digits is 560, while the sum is 24.

The square root of 145227111 is about 12051.0211600511. The cubic root of 145227111 is about 525.6329309737.

Adding to 145227111 its reverse (111722541), we get a palindrome (256949652).

The spelling of 145227111 in words is "one hundred forty-five million, two hundred twenty-seven thousand, one hundred eleven".

Divisors: 1 3 1423 4269 34019 102057 48409037 145227111