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13020003232 = 2519139154061
BaseRepresentation
bin11000010000000110…
…10111101110100000
31020121101102200201221
430020003113232200
5203131110100412
65551543504424
7640435126045
oct141003275640
936541380657
1013020003232
1155814a8155
122634458114
1312c6586732
148b72951cc
155130a3b07
hex3080d7ba0

13020003232 has 48 divisors (see below), whose sum is σ = 27176536800. Its totient is φ = 6122960640.

The previous prime is 13020003229. The next prime is 13020003259. The reversal of 13020003232 is 23230002031.

It is a super-2 number, since 2×130200032322 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 7482 + ... + 161542.

It is an arithmetic number, because the mean of its divisors is an integer number (566177850).

Almost surely, 213020003232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13020003232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13588268400).

13020003232 is an abundant number, since it is smaller than the sum of its proper divisors (14156533568).

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

13020003232 is a wasteful number, since it uses less digits than its factorization.

13020003232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154229 (or 154221 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 13020003232 its reverse (23230002031), we get a palindrome (36250005263).

The spelling of 13020003232 in words is "thirteen billion, twenty million, three thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 19 32 38 76 139 152 278 304 556 608 1112 2224 2641 4448 5282 10564 21128 42256 84512 154061 308122 616244 1232488 2464976 2927159 4929952 5854318 11708636 21414479 23417272 42828958 46834544 85657916 93669088 171315832 342631664 406875101 685263328 813750202 1627500404 3255000808 6510001616 13020003232