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30417901680 = 2435389325813
BaseRepresentation
bin11100010101000011…
…000101100001110000
32220111212122111201010
4130111003011201300
5444243440323210
621550201110520
72124532620045
oct342503054160
986455574633
1030417901680
111199a126821
125a8aa88440
132b39b339ba
141687b4d1cc
15bd0676920
hex7150c5870

30417901680 has 80 divisors (see below), whose sum is σ = 94538190240. Its totient is φ = 8090563584.

The previous prime is 30417901637. The next prime is 30417901693. The reversal of 30417901680 is 8610971403.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×304179016802 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69547 + ... + 256266.

It is an arithmetic number, because the mean of its divisors is an integer number (1181727378).

Almost surely, 230417901680 is an apocalyptic number.

30417901680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30417901680 is an abundant number, since it is smaller than the sum of its proper divisors (64120288560).

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

30417901680 is a wasteful number, since it uses less digits than its factorization.

30417901680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326218 (or 326212 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 30417901680 in words is "thirty billion, four hundred seventeen million, nine hundred one thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 389 778 1167 1556 1945 2334 3112 3890 4668 5835 6224 7780 9336 11670 15560 18672 23340 31120 46680 93360 325813 651626 977439 1303252 1629065 1954878 2606504 3258130 3909756 4887195 5213008 6516260 7819512 9774390 13032520 15639024 19548780 26065040 39097560 78195120 126741257 253482514 380223771 506965028 633706285 760447542 1013930056 1267412570 1520895084 1901118855 2027860112 2534825140 3041790168 3802237710 5069650280 6083580336 7604475420 10139300560 15208950840 30417901680