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47520270 = 2345717229
BaseRepresentation
bin1011010101000…
…1101000001110
310022102021120000
42311101220032
544131122040
64414305130
71114626030
oct265215016
9108367500
1047520270
1124907756
1213ab81a6
139aca805
14644dc50
15428a130
hex2d51a0e

47520270 has 240 divisors, whose sum is σ = 160475040. Its totient is φ = 9870336.

The previous prime is 47520251. The next prime is 47520307. The reversal of 47520270 is 7202574.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1638616 + ... + 1638644.

It is an arithmetic number, because the mean of its divisors is an integer number (668646).

Almost surely, 247520270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47520270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80237520).

47520270 is an abundant number, since it is smaller than the sum of its proper divisors (112954770).

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

47520270 is a wasteful number, since it uses less digits than its factorization.

47520270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 47520270 is about 6893.4947595541. The cubic root of 47520270 is about 362.2093302078.

The spelling of 47520270 in words is "forty-seven million, five hundred twenty thousand, two hundred seventy".