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13020213332 = 2271196938851
BaseRepresentation
bin11000010000001000…
…01011000001010100
31020121101211100221102
430020010023001110
5203131133311312
65551552205232
7640436662430
oct141004130124
936541740842
1013020213332
115581630a95
122634539818
1312c662b259
148b730b9c0
155130e5ec2
hex30810b054

13020213332 has 24 divisors (see below), whose sum is σ = 26043272640. Its totient is φ = 5579481600.

The previous prime is 13020213329. The next prime is 13020213347. The reversal of 13020213332 is 23331202031.

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, 315707 + ... + 354557.

It is an arithmetic number, because the mean of its divisors is an integer number (1085136360).

Almost surely, 213020213332 is an apocalyptic number.

It is an amenable number.

13020213332 is an abundant number, since it is smaller than the sum of its proper divisors (13023059308).

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

13020213332 is a wasteful number, since it uses less digits than its factorization.

13020213332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50831 (or 50829 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13020213332 its reverse (23331202031), we get a palindrome (36351415363).

The spelling of 13020213332 in words is "thirteen billion, twenty million, two hundred thirteen thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 11969 23938 38851 47876 77702 83783 155404 167566 271957 335132 543914 1087828 465007619 930015238 1860030476 3255053333 6510106666 13020213332