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13038840507 = 3711234357073
BaseRepresentation
bin11000010010010110…
…01110101010111011
31020122200212201121210
430021023032222323
5203200420344012
65553455334203
7641054213160
oct141113165273
936580781553
1013038840507
1155910a3950
12263a821363
1312ca450854
148b999a067
15514a7523c
hex3092ceabb

13038840507 has 64 divisors (see below), whose sum is σ = 23143735296. Its totient is φ = 6328143360.

The previous prime is 13038840491. The next prime is 13038840601. The reversal of 13038840507 is 70504883031.

It is not a de Polignac number, because 13038840507 - 24 = 13038840491 is a prime.

It is a super-2 number, since 2×130388405072 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13038845507) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 199923 + ... + 256995.

It is an arithmetic number, because the mean of its divisors is an integer number (361620864).

Almost surely, 213038840507 is an apocalyptic number.

13038840507 is a deficient number, since it is larger than the sum of its proper divisors (10104894789).

13038840507 is a wasteful number, since it uses less digits than its factorization.

13038840507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57160.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 13038840507 in words is "thirteen billion, thirty-eight million, eight hundred forty thousand, five hundred seven".

Divisors: 1 3 7 11 21 23 33 43 69 77 129 161 231 253 301 473 483 759 903 989 1419 1771 2967 3311 5313 6923 9933 10879 20769 32637 57073 76153 171219 228459 399511 627803 1198533 1312679 1883409 2454139 3938037 4394621 7362417 9188753 13183863 14439469 17178973 26995529 27566259 43318407 51536919 56445197 80986587 101076283 169335591 188968703 303228849 395116379 566906109 620897167 1185349137 1862691501 4346280169 13038840507