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145419368 = 2380922469
BaseRepresentation
bin10001010101011…
…10110001101000
3101010122001212112
420222232301220
5244211404433
622232501452
73414021113
oct1052566150
9333561775
10145419368
11750a37a6
124084a888
1324186c83
141545557a
15cb77348
hex8aaec68

145419368 has 16 divisors (see below), whose sum is σ = 273010500. Its totient is φ = 72616576.

The previous prime is 145419367. The next prime is 145419371. The reversal of 145419368 is 863914541.

It can be written as a sum of positive squares in 2 ways, for example, as 128097124 + 17322244 = 11318^2 + 4162^2 .

It is a super-2 number, since 2×1454193682 = 42293585179038848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145419367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4763 + ... + 17706.

Almost surely, 2145419368 is an apocalyptic number.

It is an amenable number.

145419368 is a deficient number, since it is larger than the sum of its proper divisors (127591132).

145419368 is a wasteful number, since it uses less digits than its factorization.

145419368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23284 (or 23280 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 145419368 is about 12058.9953147018. The cubic root of 145419368 is about 525.8647794404.

The spelling of 145419368 in words is "one hundred forty-five million, four hundred nineteen thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 809 1618 3236 6472 22469 44938 89876 179752 18177421 36354842 72709684 145419368