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149285563 = 7211310093
BaseRepresentation
bin10001110010111…
…10101010111011
3101101220111021221
420321132222323
5301204114223
622451412511
73461622610
oct1071365273
9341814257
10149285563
11772a44a9
1241bb4137
1324c0b96b
1415b80507
15d18cb5d
hex8e5eabb

149285563 has 8 divisors (see below), whose sum is σ = 170709728. Its totient is φ = 127885824.

The previous prime is 149285561. The next prime is 149285567. The reversal of 149285563 is 365582941.

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

It is a cyclic number.

It is not a de Polignac number, because 149285563 - 21 = 149285561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149285561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9745 + ... + 19837.

It is an arithmetic number, because the mean of its divisors is an integer number (21338716).

Almost surely, 2149285563 is an apocalyptic number.

149285563 is a deficient number, since it is larger than the sum of its proper divisors (21424165).

149285563 is a wasteful number, since it uses less digits than its factorization.

149285563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213.

The product of its digits is 259200, while the sum is 43.

The square root of 149285563 is about 12218.2471328747. The cubic root of 149285563 is about 530.4843833263.

The spelling of 149285563 in words is "one hundred forty-nine million, two hundred eighty-five thousand, five hundred sixty-three".

Divisors: 1 7 2113 10093 14791 70651 21326509 149285563