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145332663 = 3714946447
BaseRepresentation
bin10001010100110…
…01100110110111
3101010110122221020
420222121212313
5244201121123
622230552223
73413210250
oct1052314667
9333418836
10145332663
1175044643
1240808673
1324156678
1415431b27
15cb5b7e3
hex8a999b7

145332663 has 16 divisors (see below), whose sum is σ = 222950400. Its totient is φ = 82488096.

The previous prime is 145332641. The next prime is 145332673. The reversal of 145332663 is 366233541.

It is not a de Polignac number, because 145332663 - 212 = 145328567 is a prime.

It is a super-2 number, since 2×1453326632 = 42243165869343138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145332623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20095 + ... + 26352.

It is an arithmetic number, because the mean of its divisors is an integer number (13934400).

Almost surely, 2145332663 is an apocalyptic number.

145332663 is a deficient number, since it is larger than the sum of its proper divisors (77617737).

145332663 is a wasteful number, since it uses less digits than its factorization.

145332663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46606.

The product of its digits is 38880, while the sum is 33.

The square root of 145332663 is about 12055.3997445128. The cubic root of 145332663 is about 525.7602446016.

The spelling of 145332663 in words is "one hundred forty-five million, three hundred thirty-two thousand, six hundred sixty-three".

Divisors: 1 3 7 21 149 447 1043 3129 46447 139341 325129 975387 6920603 20761809 48444221 145332663