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145389368 = 23195931613
BaseRepresentation
bin10001010101001…
…11011100111000
3101010120112201102
420222213130320
5244204424433
622232110532
73413534465
oct1052473470
9333515642
10145389368
1175083203
1240835448
1324176417
141544866c
15cb6d4e8
hex8aa7738

145389368 has 32 divisors (see below), whose sum is σ = 287614800. Its totient is φ = 68709888.

The previous prime is 145389359. The next prime is 145389401. The reversal of 145389368 is 863983541.

145389368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1453893682 = 42276136654878848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89330 + ... + 90942.

Almost surely, 2145389368 is an apocalyptic number.

It is an amenable number.

145389368 is a deficient number, since it is larger than the sum of its proper divisors (142225432).

145389368 is a wasteful number, since it uses less digits than its factorization.

145389368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231 (or 2227 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 145389368 is about 12057.7513658227. The cubic root of 145389368 is about 525.8286150042.

The spelling of 145389368 in words is "one hundred forty-five million, three hundred eighty-nine thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 19 38 76 152 593 1186 1613 2372 3226 4744 6452 11267 12904 22534 30647 45068 61294 90136 122588 245176 956509 1913018 3826036 7652072 18173671 36347342 72694684 145389368