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1379416428 = 2232132947471
BaseRepresentation
bin101001000111000…
…0011100101101100
310120010121121121100
41102032003211230
510311112311203
6344513403100
746116563145
oct12216034554
93503547540
101379416428
1164870aa85
12325b69490
1318ca22850
14d12b4acc
158117aea3
hex5238396c

1379416428 has 36 divisors (see below), whose sum is σ = 3755079328. Its totient is φ = 424435680.

The previous prime is 1379416399. The next prime is 1379416439. The reversal of 1379416428 is 8246149731.

1379416428 is a `hidden beast` number, since 137 + 94 + 1 + 6 + 428 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1473268 + ... + 1474203.

Almost surely, 21379416428 is an apocalyptic number.

1379416428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1379416428 is an abundant number, since it is smaller than the sum of its proper divisors (2375662900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1379416428 is a wasteful number, since it uses less digits than its factorization.

1379416428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947494 (or 2947489 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 1379416428 is about 37140.4957963676. The cubic root of 1379416428 is about 1113.1793241574.

The spelling of 1379416428 in words is "one billion, three hundred seventy-nine million, four hundred sixteen thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 2947471 5894942 8842413 11789884 17684826 26527239 35369652 38317123 53054478 76634246 106108956 114951369 153268492 229902738 344854107 459805476 689708214 1379416428