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4997212512 = 253412335449
BaseRepresentation
bin1001010011101101…
…10110100101100000
3110220021010200211220
410221312312211200
540213241300022
62143511335040
7234556414455
oct45166664540
913807120756
104997212512
1121348837a6
12b75681480
136183c3ba6
1435597782c
151e3aa585c
hex129db6960

4997212512 has 96 divisors (see below), whose sum is σ = 13497775200. Its totient is φ = 1617838080.

The previous prime is 4997212499. The next prime is 4997212513. The reversal of 4997212512 is 2152127994.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4997212513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914364 + ... + 919812.

It is an arithmetic number, because the mean of its divisors is an integer number (140601825).

Almost surely, 24997212512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4997212512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6748887600).

4997212512 is an abundant number, since it is smaller than the sum of its proper divisors (8500562688).

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

4997212512 is a wasteful number, since it uses less digits than its factorization.

4997212512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736 (or 5728 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 4997212512 is about 70690.9648540745. The cubic root of 4997212512 is about 1709.6581184444.

The spelling of 4997212512 in words is "four billion, nine hundred ninety-seven million, two hundred twelve thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 41 48 82 96 123 164 233 246 328 466 492 656 699 932 984 1312 1398 1864 1968 2796 3728 3936 5449 5592 7456 9553 10898 11184 16347 19106 21796 22368 28659 32694 38212 43592 57318 65388 76424 87184 114636 130776 152848 174368 223409 229272 261552 305696 446818 458544 523104 670227 893636 917088 1269617 1340454 1787272 2539234 2680908 3574544 3808851 5078468 5361816 7149088 7617702 10156936 10723632 15235404 20313872 21447264 30470808 40627744 52054297 60941616 104108594 121883232 156162891 208217188 312325782 416434376 624651564 832868752 1249303128 1665737504 2498606256 4997212512