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120200312124 = 22331381805913
BaseRepresentation
bin110111111110001111…
…1110011010100111100
3102111020222002112002000
41233330133303110330
53432132234441444
6131115205502300
711453450536524
oct1577437632474
9374228075060
10120200312124
1146a81a40632
121b366a11990
13b447850759
145b63baa684
1531d7872469
hex1bfc7f353c

120200312124 has 48 divisors (see below), whose sum is σ = 311856481440. Its totient is φ = 40037708160.

The previous prime is 120200312093. The next prime is 120200312129. The reversal of 120200312124 is 421213002021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120200312097 and 120200312106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120200312129) 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, 253809 + ... + 552104.

It is an arithmetic number, because the mean of its divisors is an integer number (6497010030).

Almost surely, 2120200312124 is an apocalyptic number.

It is an amenable number.

120200312124 is an abundant number, since it is smaller than the sum of its proper divisors (191656169316).

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

120200312124 is a wasteful number, since it uses less digits than its factorization.

120200312124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807307 (or 807299 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 120200312124 its reverse (421213002021), we get a palindrome (541413314145).

The spelling of 120200312124 in words is "one hundred twenty billion, two hundred million, three hundred twelve thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1381 2762 4143 5524 8286 12429 16572 24858 37287 49716 74574 149148 805913 1611826 2417739 3223652 4835478 7253217 9670956 14506434 21759651 29012868 43519302 87038604 1112965853 2225931706 3338897559 4451863412 6677795118 10016692677 13355590236 20033385354 30050078031 40066770708 60100156062 120200312124