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47673990 = 23257135821
BaseRepresentation
bin1011010111011…
…1001010000110
310022201002102100
42311313022012
544201031430
64421452530
71116136140
oct265671206
9108632370
1047673990
1124a021a1
1213b71146
139b52780
14648dc90
1542ba960
hex2d77286

47673990 has 96 divisors (see below), whose sum is σ = 152582976. Its totient is φ = 10056960.

The previous prime is 47673953. The next prime is 47674013. The reversal of 47673990 is 9937674.

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 an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5280 + ... + 11100.

It is an arithmetic number, because the mean of its divisors is an integer number (1589406).

Almost surely, 247673990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47673990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76291488).

47673990 is an abundant number, since it is smaller than the sum of its proper divisors (104908986).

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

47673990 is a wasteful number, since it uses less digits than its factorization.

47673990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854 (or 5851 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 47673990 is about 6904.6353994979. The cubic root of 47673990 is about 362.5994717111.

The spelling of 47673990 in words is "forty-seven million, six hundred seventy-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 13 14 15 18 21 26 30 35 39 42 45 63 65 70 78 90 91 105 117 126 130 182 195 210 234 273 315 390 455 546 585 630 819 910 1170 1365 1638 2730 4095 5821 8190 11642 17463 29105 34926 40747 52389 58210 75673 81494 87315 104778 122241 151346 174630 203735 227019 244482 261945 366723 378365 407470 454038 523890 529711 611205 681057 733446 756730 1059422 1135095 1222410 1362114 1589133 1833615 2270190 2648555 3178266 3405285 3667230 4767399 5297110 6810570 7945665 9534798 15891330 23836995 47673990