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30310103120 = 2451123131209
BaseRepresentation
bin11100001110100111…
…110111100001010000
32220020100210202212212
4130032213313201100
5444033341244440
621531350411252
72122053424403
oct341647674120
986210722785
1030310103120
1111944299100
125a5a960b28
132b206bc67b
1416776cbd3a
15bc5e81465
hex70e9f7850

30310103120 has 60 divisors (see below), whose sum is σ = 77459872980. Its totient is φ = 11021852160.

The previous prime is 30310103107. The next prime is 30310103177. The reversal of 30310103120 is 2130101303.

It can be written as a sum of positive squares in 2 ways, for example, as 6349539856 + 23960563264 = 79684^2 + 154792^2 .

It is a super-2 number, since 2×303101031202 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30310103095 and 30310103104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1555925 + ... + 1575284.

It is an arithmetic number, because the mean of its divisors is an integer number (1290997883).

Almost surely, 230310103120 is an apocalyptic number.

It is an amenable number.

30310103120 is an abundant number, since it is smaller than the sum of its proper divisors (47149769860).

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

30310103120 is a wasteful number, since it uses less digits than its factorization.

30310103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131244 (or 3131227 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 30310103120 its reverse (2130101303), we get a palindrome (32440204423).

The spelling of 30310103120 in words is "thirty billion, three hundred ten million, one hundred three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 121 176 220 242 440 484 605 880 968 1210 1936 2420 4840 9680 3131209 6262418 12524836 15656045 25049672 31312090 34443299 50099344 62624180 68886598 125248360 137773196 172216495 250496720 275546392 344432990 378876289 551092784 688865980 757752578 1377731960 1515505156 1894381445 2755463920 3031010312 3788762890 6062020624 7577525780 15155051560 30310103120