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47795490 = 23253137463
BaseRepresentation
bin1011011001010…
…0110100100010
310022221021002100
42312110310202
544213423430
64424231230
71120153311
oct266246442
9108837070
1047795490
1124a85506
121400b516
139b95b72
1464c2278
1542e1960
hex2d94d22

47795490 has 96 divisors (see below), whose sum is σ = 132028416. Its totient is φ = 11975040.

The previous prime is 47795479. The next prime is 47795491. The reversal of 47795490 is 9459774.

47795490 is a `hidden beast` number, since 4 + 77 + 95 + 490 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47795491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102999 + ... + 103461.

It is an arithmetic number, because the mean of its divisors is an integer number (1375296).

Almost surely, 247795490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47795490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66014208).

47795490 is an abundant number, since it is smaller than the sum of its proper divisors (84232926).

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

47795490 is a wasteful number, since it uses less digits than its factorization.

47795490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 47795490 is about 6913.4282378571. The cubic root of 47795490 is about 362.9072458413.

The spelling of 47795490 in words is "forty-seven million, seven hundred ninety-five thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 37 45 62 74 90 93 111 155 185 186 222 279 310 333 370 463 465 555 558 666 926 930 1110 1147 1389 1395 1665 2294 2315 2778 2790 3330 3441 4167 4630 5735 6882 6945 8334 10323 11470 13890 14353 17131 17205 20646 20835 28706 34262 34410 41670 43059 51393 51615 71765 85655 86118 102786 103230 129177 143530 154179 171310 215295 256965 258354 308358 430590 513930 531061 645885 770895 1062122 1291770 1541790 1593183 2655305 3186366 4779549 5310610 7965915 9559098 15931830 23897745 47795490