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145302151 = 295010419
BaseRepresentation
bin10001010100100…
…10001010000111
3101010102010002011
420222102022013
5244144132101
622230155051
73413022301
oct1052221207
9333363064
10145302151
1175023725
12407b2a87
1324145807
1415424971
15cb52751
hex8a92287

145302151 has 4 divisors (see below), whose sum is σ = 150312600. Its totient is φ = 140291704.

The previous prime is 145302137. The next prime is 145302161. The reversal of 145302151 is 151203541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 145302151 - 217 = 145171079 is a prime.

It is a super-2 number, since 2×1453021512 = 42225430170453602, 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 (145302161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505181 + ... + 2505238.

It is an arithmetic number, because the mean of its divisors is an integer number (37578150).

Almost surely, 2145302151 is an apocalyptic number.

145302151 is a deficient number, since it is larger than the sum of its proper divisors (5010449).

145302151 is an equidigital number, since it uses as much as digits as its factorization.

145302151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010448.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 145302151 is about 12054.1341870746. The cubic root of 145302151 is about 525.7234482865.

Adding to 145302151 its reverse (151203541), we get a palindrome (296505692).

The spelling of 145302151 in words is "one hundred forty-five million, three hundred two thousand, one hundred fifty-one".

Divisors: 1 29 5010419 145302151