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47245380 = 223571317509
BaseRepresentation
bin1011010000111…
…0100001000100
310021220022110220
42310032201010
544043323010
64404344340
71112402430
oct264164104
9107808426
1047245380
112473a176
12139a50b0
139a32660
1463bb9c0
154233970
hex2d0e844

47245380 has 192 divisors, whose sum is σ = 172730880. Its totient is φ = 9363456.

The previous prime is 47245369. The next prime is 47245403. The reversal of 47245380 is 8354274.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92566 + ... + 93074.

It is an arithmetic number, because the mean of its divisors is an integer number (899640).

Almost surely, 247245380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47245380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86365440).

47245380 is an abundant number, since it is smaller than the sum of its proper divisors (125485500).

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

47245380 is a wasteful number, since it uses less digits than its factorization.

47245380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 47245380 is about 6873.5274786677. The cubic root of 47245380 is about 361.5095563245.

The spelling of 47245380 in words is "forty-seven million, two hundred forty-five thousand, three hundred eighty".