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12020748500 = 225359407483
BaseRepresentation
bin10110011000111111…
…00001000011010100
31011000202011021221102
423030133201003110
5144104302423000
65304450205232
7603612450665
oct131437410324
934022137842
1012020748500
1151094432a2
1223b5883818
13119754a847
1482069d36c
154a54bd3d5
hex2cc7e10d4

12020748500 has 48 divisors (see below), whose sum is σ = 26698351680. Its totient is φ = 4726791200.

The previous prime is 12020748491. The next prime is 12020748527. The reversal of 12020748500 is 584702021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174242 + ... + 233241.

It is an arithmetic number, because the mean of its divisors is an integer number (556215660).

Almost surely, 212020748500 is an apocalyptic number.

12020748500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020748500 is an abundant number, since it is smaller than the sum of its proper divisors (14677603180).

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

12020748500 is a wasteful number, since it uses less digits than its factorization.

12020748500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407561 (or 407549 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The spelling of 12020748500 in words is "twelve billion, twenty million, seven hundred forty-eight thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 59 100 118 125 236 250 295 500 590 1180 1475 2950 5900 7375 14750 29500 407483 814966 1629932 2037415 4074830 8149660 10187075 20374150 24041497 40748300 48082994 50935375 96165988 101870750 120207485 203741500 240414970 480829940 601037425 1202074850 2404149700 3005187125 6010374250 12020748500