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47380228900 = 2252217672
BaseRepresentation
bin101100001000000101…
…001110101100100100
311112022000021000021121
4230020011032230210
51234013314311100
633433254423324
73265061205064
oct541005165444
9145260230247
1047380228900
11191039a4274
129223661b44
134611096904
1424168233a4
1513748ab51a
hexb0814eb24

47380228900 has 27 divisors (see below), whose sum is σ = 102819820369. Its totient is φ = 18951220880.

The previous prime is 47380228897. The next prime is 47380228901. The reversal of 47380228900 is 982208374.

It is a happy number.

The square root of 47380228900 is 217670.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17056882404 + 30323346496 = 130602^2 + 174136^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47380228901) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2165817 + ... + 2187583.

Almost surely, 247380228900 is an apocalyptic number.

47380228900 is the 217670-th square number.

It is an amenable number.

47380228900 is an abundant number, since it is smaller than the sum of its proper divisors (55439591469).

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

47380228900 is an frugal number, since it uses more digits than its factorization.

47380228900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43548 (or 21774 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 47380228900 in words is "forty-seven billion, three hundred eighty million, two hundred twenty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 21767 43534 87068 108835 217670 435340 544175 1088350 2176700 473802289 947604578 1895209156 2369011445 4738022890 9476045780 11845057225 23690114450 47380228900