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12103132200 = 2335220171887
BaseRepresentation
bin10110100010110011…
…10010010000101000
31011020111011211010120
423101121302100220
5144241400212300
65320552043240
7605632632465
oct132131622050
934214154116
1012103132200
1151509a23a5
122419393520
1311ab633bb3
1482b5c666c
154ac8433a0
hex2d1672428

12103132200 has 48 divisors (see below), whose sum is σ = 37519711680. Its totient is φ = 3227501760.

The previous prime is 12103132007. The next prime is 12103132207. The reversal of 12103132200 is 223130121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12103132200.

It is not an unprimeable number, because it can be changed into a prime (12103132207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10085344 + ... + 10086543.

It is an arithmetic number, because the mean of its divisors is an integer number (781660660).

Almost surely, 212103132200 is an apocalyptic number.

12103132200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103132200 is an abundant number, since it is smaller than the sum of its proper divisors (25416579480).

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

12103132200 is a wasteful number, since it uses less digits than its factorization.

12103132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20171906 (or 20171897 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12103132200 its reverse (223130121), we get a palindrome (12326262321).

The spelling of 12103132200 in words is "twelve billion, one hundred three million, one hundred thirty-two thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 200 300 600 20171887 40343774 60515661 80687548 100859435 121031322 161375096 201718870 242062644 302578305 403437740 484125288 504297175 605156610 806875480 1008594350 1210313220 1512891525 2017188700 2420626440 3025783050 4034377400 6051566100 12103132200