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712143740 = 2257111632837
BaseRepresentation
bin101010011100100…
…111001101111100
31211122000122120002
4222130213031330
52424302044430
6154355413432
723435056550
oct5234471574
91748018502
10712143740
11335a94150
1217a5b4278
13b4701939
146a819860
15427c0845
hex2a72737c

712143740 has 96 divisors (see below), whose sum is σ = 1876621824. Its totient is φ = 220527360.

The previous prime is 712143709. The next prime is 712143791. The reversal of 712143740 is 47341217.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 249602 + ... + 252438.

It is an arithmetic number, because the mean of its divisors is an integer number (19548144).

Almost surely, 2712143740 is an apocalyptic number.

712143740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712143740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938310912).

712143740 is an abundant number, since it is smaller than the sum of its proper divisors (1164478084).

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

712143740 is a wasteful number, since it uses less digits than its factorization.

712143740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027 (or 3025 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 712143740 is about 26686.0214344514. The cubic root of 712143740 is about 893.0091051916.

Adding to 712143740 its reverse (47341217), we get a palindrome (759484957).

The spelling of 712143740 in words is "seven hundred twelve million, one hundred forty-three thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 163 220 308 326 385 652 770 815 1141 1540 1630 1793 2282 2837 3260 3586 4564 5674 5705 7172 8965 11348 11410 12551 14185 17930 19859 22820 25102 28370 31207 35860 39718 50204 56740 62414 62755 79436 99295 124828 125510 156035 198590 218449 251020 312070 397180 436898 462431 624140 873796 924862 1092245 1849724 2184490 2312155 3237017 4368980 4624310 5086741 6474034 9248620 10173482 12948068 16185085 20346964 25433705 32370170 35607187 50867410 64740340 71214374 101734820 142428748 178035935 356071870 712143740