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145104387 = 3192545691
BaseRepresentation
bin10001010011000…
…01111000000011
3101010001001210120
420221201320003
5244121320022
622222031323
73411236601
oct1051417003
9333031716
10145104387
11749a908a
1240718543
13240a67ac
14153b2871
15cb13d5c
hex8a61e03

145104387 has 8 divisors (see below), whose sum is σ = 203655360. Its totient is φ = 91644840.

The previous prime is 145104383. The next prime is 145104431. The reversal of 145104387 is 783401541.

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

It is not a de Polignac number, because 145104387 - 22 = 145104383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145104383) 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 7 ways as a sum of consecutive naturals, for example, 1272789 + ... + 1272902.

It is an arithmetic number, because the mean of its divisors is an integer number (25456920).

Almost surely, 2145104387 is an apocalyptic number.

145104387 is a deficient number, since it is larger than the sum of its proper divisors (58550973).

145104387 is a wasteful number, since it uses less digits than its factorization.

145104387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545713.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 145104387 is about 12045.9282332247. The cubic root of 145104387 is about 525.4848274168.

The spelling of 145104387 in words is "one hundred forty-five million, one hundred four thousand, three hundred eighty-seven".

Divisors: 1 3 19 57 2545691 7637073 48368129 145104387