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145347513 = 3131369841
BaseRepresentation
bin10001010100111…
…01001110111001
3101010111102022020
420222131032321
5244202110023
622231145053
73413301453
oct1052351671
9333442266
10145347513
1175054813
1240815189
132416035c
14154372d3
15cb60de3
hex8a9d3b9

145347513 has 8 divisors (see below), whose sum is σ = 195276576. Its totient is φ = 96158400.

The previous prime is 145347509. The next prime is 145347539. The reversal of 145347513 is 315743541.

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

It is not a de Polignac number, because 145347513 - 22 = 145347509 is a prime.

It is a super-2 number, since 2×1453475132 = 42251799070570338, which contains 22 as substring.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (145347113) 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, 184528 + ... + 185313.

It is an arithmetic number, because the mean of its divisors is an integer number (24409572).

Almost surely, 2145347513 is an apocalyptic number.

It is an amenable number.

145347513 is a deficient number, since it is larger than the sum of its proper divisors (49929063).

145347513 is a wasteful number, since it uses less digits than its factorization.

145347513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369975.

The product of its digits is 25200, while the sum is 33.

The square root of 145347513 is about 12056.0156353581. The cubic root of 145347513 is about 525.7781512753.

The spelling of 145347513 in words is "one hundred forty-five million, three hundred forty-seven thousand, five hundred thirteen".

Divisors: 1 3 131 393 369841 1109523 48449171 145347513