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145140315 = 359676021
BaseRepresentation
bin10001010011010…
…10101001011011
3101010002220002020
420221222221123
5244123442230
622222505523
73411446415
oct1051525133
9333086066
10145140315
1174a23081
12407352a3
13240b9c58
14153c19b5
15cb1e810
hex8a6aa5b

145140315 has 8 divisors (see below), whose sum is σ = 232224528. Its totient is φ = 77408160.

The previous prime is 145140313. The next prime is 145140319. The reversal of 145140315 is 513041541.

It is a happy number.

145140315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145140315 - 21 = 145140313 is a prime.

It is a super-2 number, since 2×1451403152 = 42131422076598450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145140313) 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, 4837996 + ... + 4838025.

It is an arithmetic number, because the mean of its divisors is an integer number (29028066).

Almost surely, 2145140315 is an apocalyptic number.

145140315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145140315 is a deficient number, since it is larger than the sum of its proper divisors (87084213).

145140315 is an equidigital number, since it uses as much as digits as its factorization.

145140315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9676029.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 145140315 is about 12047.4194332230. The cubic root of 145140315 is about 525.5281940379.

Adding to 145140315 its reverse (513041541), we get a palindrome (658181856).

The spelling of 145140315 in words is "one hundred forty-five million, one hundred forty thousand, three hundred fifteen".

Divisors: 1 3 5 15 9676021 29028063 48380105 145140315