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13011003408 = 2431320850967
BaseRepresentation
bin11000001111000010…
…00010100000010000
31020120202111110022010
430013201002200100
5203121304102113
65551022542520
7640265463354
oct140741024020
936522443263
1013011003408
115577410487
122631437a40
1312c47551b0
148b5dd1464
155123c71c3
hex307842810

13011003408 has 40 divisors (see below), whose sum is σ = 36197280448. Its totient is φ = 4003385472.

The previous prime is 13011003371. The next prime is 13011003409. The reversal of 13011003408 is 80430011031.

It is a super-3 number, since 3×130110034083 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (13011003409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10424860 + ... + 10426107.

Almost surely, 213011003408 is an apocalyptic number.

It is an amenable number.

13011003408 is an abundant number, since it is smaller than the sum of its proper divisors (23186277040).

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

13011003408 is a wasteful number, since it uses less digits than its factorization.

13011003408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20850991 (or 20850985 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13011003408 its reverse (80430011031), we get a palindrome (93441014439).

The spelling of 13011003408 in words is "thirteen billion, eleven million, three thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 312 624 20850967 41701934 62552901 83403868 125105802 166807736 250211604 271062571 333615472 500423208 542125142 813187713 1000846416 1084250284 1626375426 2168500568 3252750852 4337001136 6505501704 13011003408