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12461342120 = 235895036959
BaseRepresentation
bin10111001101100000…
…01111110110101000
31012011110012202202122
423212300033312220
5201010100421440
65420305450412
7620542442333
oct134660176650
935143182678
1012461342120
115315114857
1224b9340a08
131237902c26
14862dcd61a
154cdeee7b5
hex2e6c0fda8

12461342120 has 64 divisors (see below), whose sum is σ = 28413504000. Its totient is φ = 4918025728.

The previous prime is 12461342111. The next prime is 12461342123. The reversal of 12461342120 is 2124316421.

It is a self number, because there is not a number n which added to its sum of digits gives 12461342120.

It is not an unprimeable number, because it can be changed into a prime (12461342123) 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, 1787201 + ... + 1794159.

It is an arithmetic number, because the mean of its divisors is an integer number (443961000).

Almost surely, 212461342120 is an apocalyptic number.

12461342120 is a gapful number since it is divisible by the number (10) 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 12461342120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14206752000).

12461342120 is an abundant number, since it is smaller than the sum of its proper divisors (15952161880).

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

12461342120 is a wasteful number, since it uses less digits than its factorization.

12461342120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7562 (or 7558 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 12461342120 its reverse (2124316421), we get a palindrome (14585658541).

The spelling of 12461342120 in words is "twelve billion, four hundred sixty-one million, three hundred forty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 89 178 356 445 503 712 890 1006 1780 2012 2515 3560 4024 5030 6959 10060 13918 20120 27836 34795 44767 55672 69590 89534 139180 179068 223835 278360 358136 447670 619351 895340 1238702 1790680 2477404 3096755 3500377 4954808 6193510 7000754 12387020 14001508 17501885 24774040 28003016 35003770 70007540 140015080 311533553 623067106 1246134212 1557667765 2492268424 3115335530 6230671060 12461342120