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1384874997 = 31131243669
BaseRepresentation
bin101001010001011…
…1000001111110101
310120111212221100120
41102202320033311
510314011444442
6345230402153
746214146302
oct12242701765
93514787316
101384874997
116507a90a0
12327960359
13190bb427c
14d1cd60a9
15818a84ec
hex528b83f5

1384874997 has 24 divisors (see below), whose sum is σ = 2081486880. Its totient is φ = 812224800.

The previous prime is 1384874989. The next prime is 1384875013. The reversal of 1384874997 is 7994784831.

1384874997 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1384874997 - 23 = 1384874989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1384874997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384874947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9879 + ... + 53547.

It is an arithmetic number, because the mean of its divisors is an integer number (86728620).

Almost surely, 21384874997 is an apocalyptic number.

It is an amenable number.

1384874997 is a deficient number, since it is larger than the sum of its proper divisors (696611883).

1384874997 is a wasteful number, since it uses less digits than its factorization.

1384874997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43745 (or 43714 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 60.

The square root of 1384874997 is about 37213.9086498583. The cubic root of 1384874997 is about 1114.6457338057.

The spelling of 1384874997 in words is "one billion, three hundred eighty-four million, eight hundred seventy-four thousand, nine hundred ninety-seven".

Divisors: 1 3 11 31 33 93 341 961 1023 2883 10571 31713 43669 131007 480359 1353739 1441077 4061217 14891129 41965909 44673387 125897727 461624999 1384874997