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145346056 = 23171068721
BaseRepresentation
bin10001010100111…
…00111000001000
3101010111100022021
420222130320020
5244202033211
622231134224
73413264302
oct1052347010
9333440267
10145346056
1175053709
1240814374
132415c7ab
1415436972
15cb60771
hex8a9ce08

145346056 has 16 divisors (see below), whose sum is σ = 288554940. Its totient is φ = 68398080.

The previous prime is 145346053. The next prime is 145346111. The reversal of 145346056 is 650643541.

It can be written as a sum of positive squares in 2 ways, for example, as 143185156 + 2160900 = 11966^2 + 1470^2 .

It is a super-2 number, since 2×1453460562 = 42250951989510272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (145346051) 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, 534225 + ... + 534496.

Almost surely, 2145346056 is an apocalyptic number.

It is an amenable number.

145346056 is a deficient number, since it is larger than the sum of its proper divisors (143208884).

145346056 is a wasteful number, since it uses less digits than its factorization.

145346056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068744 (or 1068740 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 145346056 is about 12055.9552089413. The cubic root of 145346056 is about 525.7763944253.

Adding to 145346056 its reverse (650643541), we get a palindrome (795989597).

The spelling of 145346056 in words is "one hundred forty-five million, three hundred forty-six thousand, fifty-six".

Divisors: 1 2 4 8 17 34 68 136 1068721 2137442 4274884 8549768 18168257 36336514 72673028 145346056