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712268478 = 2352997521
BaseRepresentation
bin101010011101000…
…101101010111110
31211122020222200000
4222131011222332
52424320042403
6154402215130
723436116325
oct5235055276
91748228600
10712268478
11336069939
1217a6544a6
13b474664c
146a84d0bc
15427e77a3
hex2a745abe

712268478 has 96 divisors (see below), whose sum is σ = 1675870560. Its totient is φ = 226437120.

The previous prime is 712268477. The next prime is 712268483. The reversal of 712268478 is 874862217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712268477) 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 47 ways as a sum of consecutive naturals, for example, 1366858 + ... + 1367378.

It is an arithmetic number, because the mean of its divisors is an integer number (17456985).

Almost surely, 2712268478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712268478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837935280).

712268478 is an abundant number, since it is smaller than the sum of its proper divisors (963602082).

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

712268478 is a wasteful number, since it uses less digits than its factorization.

712268478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 652 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 712268478 is about 26688.3584733119. The cubic root of 712268478 is about 893.0612415139.

The spelling of 712268478 in words is "seven hundred twelve million, two hundred sixty-eight thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 9 18 27 29 54 58 81 87 97 162 174 194 243 261 291 486 521 522 582 783 873 1042 1563 1566 1746 2349 2619 2813 3126 4689 4698 5238 5626 7047 7857 8439 9378 14067 14094 15109 15714 16878 23571 25317 28134 30218 42201 45327 47142 50537 50634 75951 84402 90654 101074 126603 135981 151611 151902 227853 253206 271962 303222 407943 454833 455706 683559 815886 909666 1223829 1364499 1367118 1465573 2447658 2728998 2931146 3671487 4093497 4396719 7342974 8186994 8793438 12280491 13190157 24560982 26380314 39570471 79140942 118711413 237422826 356134239 712268478