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47247028 = 2213998443
BaseRepresentation
bin1011010000111…
…0111010110100
310021220101201221
42310032322310
544043401103
64404400124
71112410303
oct264167264
9107811657
1047247028
1124740434
12139a6044
139a3332a
1463bc43a
1542341bd
hex2d0eeb4

47247028 has 12 divisors (see below), whose sum is σ = 82751200. Its totient is φ = 23603832.

The previous prime is 47247019. The next prime is 47247089. The reversal of 47247028 is 82074274.

It is a junction number, because it is equal to n+sod(n) for n = 47246984 and 47247002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375 + ... + 9817.

Almost surely, 247247028 is an apocalyptic number.

It is an amenable number.

47247028 is a deficient number, since it is larger than the sum of its proper divisors (35504172).

47247028 is a wasteful number, since it uses less digits than its factorization.

47247028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9846 (or 9844 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 47247028 is about 6873.6473578443. The cubic root of 47247028 is about 361.5137596337.

The spelling of 47247028 in words is "forty-seven million, two hundred forty-seven thousand, twenty-eight".

Divisors: 1 2 4 1399 2798 5596 8443 16886 33772 11811757 23623514 47247028