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1214749385 = 5281986183
BaseRepresentation
bin100100001100111…
…1001101011001001
310010122202122212222
41020121321223021
54441433440020
6320312143425
742050125253
oct11031715311
93118678788
101214749385
11573770213
1229a997b75
13164889a25
14b748ccd3
15719a0b25
hex48679ac9

1214749385 has 8 divisors (see below), whose sum is σ = 1458233280. Its totient is φ = 971443504.

The previous prime is 1214749381. The next prime is 1214749421. The reversal of 1214749385 is 5839474121.

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 1214749385 - 22 = 1214749381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214749381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28997 + ... + 57186.

It is an arithmetic number, because the mean of its divisors is an integer number (182279160).

Almost surely, 21214749385 is an apocalyptic number.

It is an amenable number.

1214749385 is a deficient number, since it is larger than the sum of its proper divisors (243483895).

1214749385 is an equidigital number, since it uses as much as digits as its factorization.

1214749385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89007.

The product of its digits is 241920, while the sum is 44.

The square root of 1214749385 is about 34853.2550129826. The cubic root of 1214749385 is about 1066.9946191567.

The spelling of 1214749385 in words is "one billion, two hundred fourteen million, seven hundred forty-nine thousand, three hundred eighty-five".

Divisors: 1 5 2819 14095 86183 430915 242949877 1214749385