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145260611 = 227363907
BaseRepresentation
bin10001010100010…
…00000001000011
3101010100000002122
420222020001003
5244141314421
622225234455
73412460216
oct1052100103
9333300078
10145260611
1174aa54a1
1240792a2b
132412c932
141541377d
15cb452ab
hex8a88043

145260611 has 4 divisors (see below), whose sum is σ = 145326792. Its totient is φ = 145194432.

The previous prime is 145260589. The next prime is 145260659. The reversal of 145260611 is 116062541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116062541 = 716580363.

It is a cyclic number.

It is not a de Polignac number, because 145260611 - 218 = 144998467 is a prime.

It is a super-2 number, since 2×1452606112 = 42201290216186642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145260671) 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, 29681 + ... + 34226.

It is an arithmetic number, because the mean of its divisors is an integer number (36331698).

Almost surely, 2145260611 is an apocalyptic number.

145260611 is a deficient number, since it is larger than the sum of its proper divisors (66181).

145260611 is an equidigital number, since it uses as much as digits as its factorization.

145260611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66180.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 145260611 is about 12052.4110036125. The cubic root of 145260611 is about 525.6733443403.

It can be divided in two parts, 14 and 5260611, that added together give a palindrome (5260625).

The spelling of 145260611 in words is "one hundred forty-five million, two hundred sixty thousand, six hundred eleven".

Divisors: 1 2273 63907 145260611