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47994684 = 223191811163
BaseRepresentation
bin1011011100010…
…1011100111100
310100022101022220
42313011130330
544241312214
64432405340
71121643123
oct267053474
9110271286
1047994684
1125101131
12140a6850
139c3572a
146534aba
1543309a9
hex2dc573c

47994684 has 48 divisors (see below), whose sum is σ = 118634880. Its totient is φ = 15059520.

The previous prime is 47994677. The next prime is 47994701. The reversal of 47994684 is 48649974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40687 + ... + 41849.

It is an arithmetic number, because the mean of its divisors is an integer number (2471560).

Almost surely, 247994684 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 47994684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59317440).

47994684 is an abundant number, since it is smaller than the sum of its proper divisors (70640196).

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

47994684 is a wasteful number, since it uses less digits than its factorization.

47994684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1368 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 47994684 is about 6927.8195703988. The cubic root of 47994684 is about 363.4107016641.

The spelling of 47994684 in words is "forty-seven million, nine hundred ninety-four thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 181 228 362 543 724 1086 1163 2172 2326 3439 3489 4652 6878 6978 10317 13756 13956 20634 22097 41268 44194 66291 88388 132582 210503 265164 421006 631509 842012 1263018 2526036 3999557 7999114 11998671 15998228 23997342 47994684