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30086403880 = 23513331174799
BaseRepresentation
bin11100000001010010…
…100001011100101000
32212122202212200012211
4130001102201130220
5443104104411010
621453240014504
72113366133131
oct340122413450
985582780184
1030086403880
1111839a995a5
1259b7a61434
132ab6258260
141655adac88
15bb14e508a
hex7014a1728

30086403880 has 64 divisors (see below), whose sum is σ = 73122336000. Its totient is φ = 11075201280.

The previous prime is 30086403863. The next prime is 30086403923. The reversal of 30086403880 is 8830468003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 15 ways as a sum of consecutive naturals, for example, 84721 + ... + 259519.

It is an arithmetic number, because the mean of its divisors is an integer number (1142536500).

Almost surely, 230086403880 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 30086403880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36561168000).

30086403880 is an abundant number, since it is smaller than the sum of its proper divisors (43035932120).

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

30086403880 is a wasteful number, since it uses less digits than its factorization.

30086403880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175154 (or 175150 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 30086403880 in words is "thirty billion, eighty-six million, four hundred three thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 331 520 662 1324 1655 2648 3310 4303 6620 8606 13240 17212 21515 34424 43030 86060 172120 174799 349598 699196 873995 1398392 1747990 2272387 3495980 4544774 6991960 9089548 11361935 18179096 22723870 45447740 57858469 90895480 115716938 231433876 289292345 462867752 578584690 752160097 1157169380 1504320194 2314338760 3008640388 3760800485 6017280776 7521600970 15043201940 30086403880