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30103003120 = 245438750873
BaseRepresentation
bin11100000010010001…
…110101111111110000
32212200221010000002111
4130002101311333300
5443122332044440
621455031455104
72113660206331
oct340221657760
985627100074
1030103003120
11118483a6883
125a01527494
132ab981a7a8
141657dbc288
15bb2bc34ea
hex702475ff0

30103003120 has 40 divisors (see below), whose sum is σ = 71617152816. Its totient is φ = 11761171968.

The previous prime is 30103003109. The next prime is 30103003213. The reversal of 30103003120 is 2130030103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 30103003120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4371997 + ... + 4378876.

Almost surely, 230103003120 is an apocalyptic number.

It is an amenable number.

30103003120 is an abundant number, since it is smaller than the sum of its proper divisors (41514149696).

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

30103003120 is a wasteful number, since it uses less digits than its factorization.

30103003120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8750929 (or 8750923 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 30103003120 its reverse (2130030103), we get a palindrome (32233033223).

The spelling of 30103003120 in words is "thirty billion, one hundred three million, three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 43 80 86 172 215 344 430 688 860 1720 3440 8750873 17501746 35003492 43754365 70006984 87508730 140013968 175017460 350034920 376287539 700069840 752575078 1505150156 1881437695 3010300312 3762875390 6020600624 7525750780 15051501560 30103003120