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13053215385 = 3257371517417
BaseRepresentation
bin11000010100000100…
…00100001010011001
31020200200221001020200
430022002010022121
5203213110343020
65555131412413
7641320333350
oct141202041231
936620831220
1013053215385
115599221a11
1226435b4109
1313004147b2
148bb85c997
15515e64590
hex30a084299

13053215385 has 96 divisors (see below), whose sum is σ = 26736133632. Its totient is φ = 5766681600.

The previous prime is 13053215381. The next prime is 13053215411. The reversal of 13053215385 is 58351235031.

13053215385 is a `hidden beast` number, since 1 + 30 + 532 + 15 + 3 + 85 = 666.

It is not a de Polignac number, because 13053215385 - 22 = 13053215381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13053215381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1756197 + ... + 1763613.

It is an arithmetic number, because the mean of its divisors is an integer number (278501392).

Almost surely, 213053215385 is an apocalyptic number.

13053215385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13053215385 is an abundant number, since it is smaller than the sum of its proper divisors (13682918247).

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

13053215385 is a wasteful number, since it uses less digits than its factorization.

13053215385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7623 (or 7620 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 13053215385 in words is "thirteen billion, fifty-three million, two hundred fifteen thousand, three hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 35 37 45 63 105 111 151 185 259 315 333 453 555 755 777 1057 1295 1359 1665 2265 2331 3171 3885 5285 5587 6795 7417 9513 11655 15855 16761 22251 27935 37085 39109 47565 50283 51919 66753 83805 111255 117327 155757 195545 251415 259595 274429 333765 351981 467271 586635 778785 823287 1119967 1372145 1759905 1921003 2336355 2469861 3359901 4116435 5599835 5763009 7839769 9605015 10079703 12349305 16799505 17289027 23519307 28815045 39198845 41438779 50398515 70557921 86445135 117596535 124316337 207193895 290071453 352789605 372949011 621581685 870214359 1450357265 1864745055 2610643077 4351071795 13053215385