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12304437500 = 2256196871
BaseRepresentation
bin10110111010110011…
…01101000011111100
31011202111222012002102
423131121231003330
5200144414000000
65352542444232
7613625664425
oct133531550374
934674865072
1012304437500
115244597013
122474893678
131211257364
1484a22864c
154c03593d5
hex2dd66d0fc

12304437500 has 42 divisors (see below), whose sum is σ = 26915749224. Its totient is φ = 4921750000.

The previous prime is 12304437499. The next prime is 12304437511. The reversal of 12304437500 is 573440321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 35936 + ... + 160935.

It is an arithmetic number, because the mean of its divisors is an integer number (640851172).

Almost surely, 212304437500 is an apocalyptic number.

12304437500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12304437500 is an abundant number, since it is smaller than the sum of its proper divisors (14611311724).

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

12304437500 is an frugal number, since it uses more digits than its factorization.

12304437500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196905 (or 196878 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 12304437500 its reverse (573440321), we get a palindrome (12877877821).

The spelling of 12304437500 in words is "twelve billion, three hundred four million, four hundred thirty-seven thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 3125 6250 12500 15625 31250 62500 196871 393742 787484 984355 1968710 3937420 4921775 9843550 19687100 24608875 49217750 98435500 123044375 246088750 492177500 615221875 1230443750 2460887500 3076109375 6152218750 12304437500