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20310133152 = 253972181071
BaseRepresentation
bin10010111010100101…
…000000100110100000
31221102110002122221210
4102322211000212200
5313043343230102
613155204350120
71316206166121
oct227245004640
957373078853
1020310133152
1186825a4711
123b299a5340
131bb8a12a8a
14da9576048
157dd0cc36c
hex4ba9409a0

20310133152 has 48 divisors (see below), whose sum is σ = 53863754112. Its totient is φ = 6700247040.

The previous prime is 20310133099. The next prime is 20310133241. The reversal of 20310133152 is 25133101302.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 1081224 + ... + 1099847.

It is an arithmetic number, because the mean of its divisors is an integer number (1122161544).

Almost surely, 220310133152 is an apocalyptic number.

It is an amenable number.

20310133152 is an abundant number, since it is smaller than the sum of its proper divisors (33553620960).

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

20310133152 is a wasteful number, since it uses less digits than its factorization.

20310133152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181181 (or 2181173 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 20310133152 its reverse (25133101302), we get a palindrome (45443234454).

The spelling of 20310133152 in words is "twenty billion, three hundred ten million, one hundred thirty-three thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 97 194 291 388 582 776 1164 1552 2328 3104 4656 9312 2181071 4362142 6543213 8724284 13086426 17448568 26172852 34897136 52345704 69794272 104691408 209382816 211563887 423127774 634691661 846255548 1269383322 1692511096 2538766644 3385022192 5077533288 6770044384 10155066576 20310133152