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472008180 = 223572181887
BaseRepresentation
bin11100001000100…
…100010111110100
31012220011111111110
4130020210113310
51431313230210
6114500435020
714461001100
oct3410442764
91186144443
10472008180
11222488806
121120a8a70
1376a341a7
144698a900
152b689420
hex1c2245f4

472008180 has 144 divisors (see below), whose sum is σ = 1547634816. Its totient is φ = 107170560.

The previous prime is 472008167. The next prime is 472008193. The reversal of 472008180 is 81800274.

It is an interprime number because it is at equal distance from previous prime (472008167) and next prime (472008193).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 531697 + ... + 532583.

It is an arithmetic number, because the mean of its divisors is an integer number (10747464).

Almost surely, 2472008180 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 472008180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773817408).

472008180 is an abundant number, since it is smaller than the sum of its proper divisors (1075626636).

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

472008180 is a wasteful number, since it uses less digits than its factorization.

472008180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 472008180 is about 21725.7492390941. The cubic root of 472008180 is about 778.6037809892.

The spelling of 472008180 in words is "four hundred seventy-two million, eight thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 181 196 210 245 294 362 420 490 543 588 724 735 887 905 980 1086 1267 1470 1774 1810 2172 2534 2661 2715 2940 3548 3620 3801 4435 5068 5322 5430 6209 6335 7602 8869 8870 10644 10860 12418 12670 13305 15204 17738 17740 18627 19005 24836 25340 26607 26610 31045 35476 37254 38010 43463 44345 53214 53220 62090 74508 76020 86926 88690 93135 106428 124180 130389 133035 160547 173852 177380 186270 217315 260778 266070 321094 372540 434630 481641 521556 532140 642188 651945 802735 869260 963282 1123829 1303890 1605470 1926564 2247658 2408205 2607780 3210940 3371487 4495316 4816410 5619145 6742974 7866803 9632820 11238290 13485948 15733606 16857435 22476580 23600409 31467212 33714870 39334015 47200818 67429740 78668030 94401636 118002045 157336060 236004090 472008180