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13628917497 = 3136179127571
BaseRepresentation
bin11001011000101100…
…01100011011111001
31022011211012202002010
430230112030123321
5210403000324442
610132215000133
7661510613226
oct145426143371
938154182063
1013628917497
115864194488
122784369049
131392783930
149340bc94d
1554b782b9c
hex32c58c6f9

13628917497 has 64 divisors (see below), whose sum is σ = 20336476160. Its totient is φ = 8066822400.

The previous prime is 13628917483. The next prime is 13628917579. The reversal of 13628917497 is 79471982631.

It is a happy number.

It is not a de Polignac number, because 13628917497 - 24 = 13628917481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13628917397) 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, 23868222 + ... + 23868792.

It is an arithmetic number, because the mean of its divisors is an integer number (317757440).

Almost surely, 213628917497 is an apocalyptic number.

It is an amenable number.

13628917497 is a deficient number, since it is larger than the sum of its proper divisors (6707558663).

13628917497 is a wasteful number, since it uses less digits than its factorization.

13628917497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854.

The product of its digits is 4572288, while the sum is 57.

The spelling of 13628917497 in words is "thirteen billion, six hundred twenty-eight million, nine hundred seventeen thousand, four hundred ninety-seven".

Divisors: 1 3 13 39 61 79 127 183 237 381 571 793 1027 1651 1713 2379 3081 4819 4953 7423 7747 10033 14457 22269 23241 30099 34831 45109 62647 72517 100711 104493 130429 135327 187941 217551 302133 391287 452803 586417 612013 942721 1358409 1759251 1836039 2751649 2828163 4423537 5728843 7956169 8254947 13270611 17186529 23868507 35771437 57505981 74474959 107314311 172517943 223424877 349459423 1048378269 4542972499 13628917497