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30500008 = 2371167739
BaseRepresentation
bin111010001011…
…0010010101000
32010101120010221
41310112102220
530302000013
63005415424
7520150210
oct164262250
963346127
1030500008
1116242120
12a26a574
13641b756
14409d240
152a2708d
hex1d164a8

30500008 has 64 divisors (see below), whose sum is σ = 72460800. Its totient is φ = 11689920.

The previous prime is 30500003. The next prime is 30500009. The reversal of 30500008 is 80000503.

It is a junction number, because it is equal to n+sod(n) for n = 30499964 and 30500000.

It is not an unprimeable number, because it can be changed into a prime (30500003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40903 + ... + 41641.

It is an arithmetic number, because the mean of its divisors is an integer number (1132200).

Almost surely, 230500008 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 30500008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36230400).

30500008 is an abundant number, since it is smaller than the sum of its proper divisors (41960792).

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

30500008 is a wasteful number, since it uses less digits than its factorization.

30500008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30500008 is about 5522.6812328796. The cubic root of 30500008 is about 312.4400157935.

The spelling of 30500008 in words is "thirty million, five hundred thousand, eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 67 77 88 134 154 268 308 469 536 616 737 739 938 1474 1478 1876 2948 2956 3752 5159 5173 5896 5912 8129 10318 10346 16258 20636 20692 32516 41272 41384 49513 56903 65032 99026 113806 198052 227612 346591 396104 455224 544643 693182 1089286 1386364 2178572 2772728 3812501 4357144 7625002 15250004 30500008