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13708428890 = 25131721133229
BaseRepresentation
bin11001100010001011…
…00000011001011010
31022101100211100012112
430301011200121122
5211033324211030
610144135112322
7663464502662
oct146105403132
938340740175
1013708428890
1158a5061582
1227a6b126a2
1313a60a27b0
149408991a2
1555373ba95
hex33116065a

13708428890 has 96 divisors (see below), whose sum is σ = 28486972080. Its totient is φ = 4720214016.

The previous prime is 13708428871. The next prime is 13708428913. The reversal of 13708428890 is 9882480731.

It is a Cunningham number, because it is equal to 1170832+1.

It can be written as a sum of positive squares in 24 ways, for example, as 2072707729 + 11635721161 = 45527^2 + 107869^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4243796 + ... + 4247024.

Almost surely, 213708428890 is an apocalyptic number.

13708428890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13708428890 is an abundant number, since it is smaller than the sum of its proper divisors (14778543190).

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

13708428890 is a wasteful number, since it uses less digits than its factorization.

13708428890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 13708428890 in words is "thirteen billion, seven hundred eight million, four hundred twenty-eight thousand, eight hundred ninety".

Divisors: 1 2 5 10 13 17 26 34 65 85 113 130 170 221 226 289 442 565 578 1105 1130 1445 1469 1921 2210 2890 2938 3229 3757 3842 6458 7345 7514 9605 14690 16145 18785 19210 24973 32290 32657 37570 41977 49946 54893 65314 83954 109786 124865 163285 209885 249730 274465 326570 364877 419770 424541 548930 713609 729754 849082 933181 1427218 1824385 1866362 2122705 3568045 3648770 4245410 4665905 4743401 6202909 7136090 9331810 9486802 12131353 12405818 23717005 24262706 31014545 47434010 60656765 62029090 80637817 105449453 121313530 161275634 210898906 403189085 527247265 806378170 1054494530 1370842889 2741685778 6854214445 13708428890