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47385072 = 24327291621
BaseRepresentation
bin1011010011000…
…0100111110000
310022011102002200
42310300213300
544112310242
64411343200
71113523620
oct264604760
9108142080
1047385072
1124825119
1213a51b00
139a81107
146416880
15426004c
hex2d309f0

47385072 has 120 divisors (see below), whose sum is σ = 156879840. Its totient is φ = 13063680.

The previous prime is 47385067. The next prime is 47385077. The reversal of 47385072 is 27058374.

It is an interprime number because it is at equal distance from previous prime (47385067) and next prime (47385077).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47385077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28422 + ... + 30042.

It is an arithmetic number, because the mean of its divisors is an integer number (1307332).

Almost surely, 247385072 is an apocalyptic number.

47385072 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47385072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78439920).

47385072 is an abundant number, since it is smaller than the sum of its proper divisors (109494768).

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

47385072 is a wasteful number, since it uses less digits than its factorization.

47385072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 47385072 is about 6883.6815731119. The cubic root of 47385072 is about 361.8655015539.

The spelling of 47385072 in words is "forty-seven million, three hundred eighty-five thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 29 36 42 48 56 58 63 72 84 87 112 116 126 144 168 174 203 232 252 261 336 348 406 464 504 522 609 696 812 1008 1044 1218 1392 1621 1624 1827 2088 2436 3242 3248 3654 4176 4863 4872 6484 7308 9726 9744 11347 12968 14589 14616 19452 22694 25936 29178 29232 34041 38904 45388 47009 58356 68082 77808 90776 94018 102123 116712 136164 141027 181552 188036 204246 233424 272328 282054 329063 376072 408492 423081 544656 564108 658126 752144 816984 846162 987189 1128216 1316252 1633968 1692324 1974378 2256432 2632504 2961567 3384648 3948756 5265008 5923134 6769296 7897512 11846268 15795024 23692536 47385072