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145346411 = 720763773
BaseRepresentation
bin10001010100111…
…00111101101011
3101010111100210102
420222130331223
5244202041121
622231140015
73413265320
oct1052347553
9333440712
10145346411
1175053a01
124081460b
132415c9c2
1415436b47
15cb6090b
hex8a9cf6b

145346411 has 4 divisors (see below), whose sum is σ = 166110192. Its totient is φ = 124582632.

The previous prime is 145346393. The next prime is 145346423. The reversal of 145346411 is 114643541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114643541 = 263435907.

It is a cyclic number.

It is not a de Polignac number, because 145346411 - 226 = 78237547 is a prime.

It is a super-2 number, since 2×1453464112 = 42251158381161842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145346111) 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, 10381880 + ... + 10381893.

It is an arithmetic number, because the mean of its divisors is an integer number (41527548).

Almost surely, 2145346411 is an apocalyptic number.

145346411 is a deficient number, since it is larger than the sum of its proper divisors (20763781).

145346411 is an equidigital number, since it uses as much as digits as its factorization.

145346411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20763780.

The product of its digits is 5760, while the sum is 29.

The square root of 145346411 is about 12055.9699319466. The cubic root of 145346411 is about 525.7768224852.

Adding to 145346411 its reverse (114643541), we get a palindrome (259989952).

The spelling of 145346411 in words is "one hundred forty-five million, three hundred forty-six thousand, four hundred eleven".

Divisors: 1 7 20763773 145346411