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34861980 = 22353118743
BaseRepresentation
bin1000010011111…
…1001110011100
32102121011122110
42010333032130
532411040410
63243114020
7602215266
oct204771634
972534573
1034861980
111875135a
12b812910
1372b7cba
1448b6b36
1530d9720
hex213f39c

34861980 has 48 divisors (see below), whose sum is σ = 100767744. Its totient is φ = 8996160.

The previous prime is 34861961. The next prime is 34862027. The reversal of 34861980 is 8916843.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 7512 + ... + 11231.

It is an arithmetic number, because the mean of its divisors is an integer number (2099328).

Almost surely, 234861980 is an apocalyptic number.

34861980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34861980 is an abundant number, since it is smaller than the sum of its proper divisors (65905764).

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

34861980 is a wasteful number, since it uses less digits than its factorization.

34861980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18786 (or 18784 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 34861980 is about 5904.4034415003. The cubic root of 34861980 is about 326.6760907087.

The spelling of 34861980 in words is "thirty-four million, eight hundred sixty-one thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 18743 37486 56229 74972 93715 112458 187430 224916 281145 374860 562290 581033 1124580 1162066 1743099 2324132 2905165 3486198 5810330 6972396 8715495 11620660 17430990 34861980