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30100220320 = 255697126987
BaseRepresentation
bin11100000010000111…
…001110100110100000
32212200201212121210211
4130002013032212200
5443121124022240
621454452103504
72113624436242
oct340207164640
985621777724
1030100220320
1111846876045
125a00604b94
132ab9084c71
141657896092
15bb2823bea
hex7021ce9a0

30100220320 has 48 divisors (see below), whose sum is σ = 71124607008. Its totient is φ = 12037914880.

The previous prime is 30100220309. The next prime is 30100220321. The reversal of 30100220320 is 2302200103.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30100220320.

It is not an unprimeable number, because it can be changed into a prime (30100220321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101867 + ... + 1128853.

It is an arithmetic number, because the mean of its divisors is an integer number (1481762646).

Almost surely, 230100220320 is an apocalyptic number.

It is an amenable number.

30100220320 is an abundant number, since it is smaller than the sum of its proper divisors (41024386688).

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

30100220320 is a wasteful number, since it uses less digits than its factorization.

30100220320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33973 (or 33965 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 30100220320 its reverse (2302200103), we get a palindrome (32402420423).

The spelling of 30100220320 in words is "thirty billion, one hundred million, two hundred twenty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 6971 13942 26987 27884 34855 53974 55768 69710 107948 111536 134935 139420 215896 223072 269870 278840 431792 539740 557680 863584 1079480 1115360 2158960 4317920 188126377 376252754 752505508 940631885 1505011016 1881263770 3010022032 3762527540 6020044064 7525055080 15050110160 30100220320