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30119880 = 23357231559
BaseRepresentation
bin111001011100…
…1011111001000
32002200020201010
41302321133020
530202314010
62553323520
7514005030
oct162713710
962606633
1030119880
111600256a
12a1065a0
13631771b
1440008c0
15299e620
hex1cb97c8

30119880 has 128 divisors (see below), whose sum is σ = 107827200. Its totient is φ = 6580992.

The previous prime is 30119863. The next prime is 30119891. The reversal of 30119880 is 8891103.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18541 + ... + 20099.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 230119880 is an apocalyptic number.

30119880 is a gapful number since it is divisible by the number (30) 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 30119880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53913600).

30119880 is an abundant number, since it is smaller than the sum of its proper divisors (77707320).

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

30119880 is a wasteful number, since it uses less digits than its factorization.

30119880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1599 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 30119880 is about 5488.1581609863. The cubic root of 30119880 is about 311.1365838931.

The spelling of 30119880 in words is "thirty million, one hundred nineteen thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 23 24 28 30 35 40 42 46 56 60 69 70 84 92 105 115 120 138 140 161 168 184 210 230 276 280 322 345 420 460 483 552 644 690 805 840 920 966 1288 1380 1559 1610 1932 2415 2760 3118 3220 3864 4677 4830 6236 6440 7795 9354 9660 10913 12472 15590 18708 19320 21826 23385 31180 32739 35857 37416 43652 46770 54565 62360 65478 71714 87304 93540 107571 109130 130956 143428 163695 179285 187080 215142 218260 250999 261912 286856 327390 358570 430284 436520 501998 537855 654780 717140 752997 860568 1003996 1075710 1254995 1309560 1434280 1505994 2007992 2151420 2509990 3011988 3764985 4302840 5019980 6023976 7529970 10039960 15059940 30119880