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13108523450 = 2521129821851
BaseRepresentation
bin11000011010101010…
…00011000110111010
31020211112222222122112
430031111003012322
5203321240222300
610004425052322
7642561416351
oct141525030672
936745888575
1013108523450
115617468760
12265a0270a2
13130ba0ac69
148c4d38998
1551ac3be35
hex30d5431ba

13108523450 has 48 divisors (see below), whose sum is σ = 27515604960. Its totient is φ = 4602360000.

The previous prime is 13108523437. The next prime is 13108523459. The reversal of 13108523450 is 5432580131.

It is a super-5 number, since 5×131085234505 (a number of 52 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (13108523459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394976 + ... + 426875.

It is an arithmetic number, because the mean of its divisors is an integer number (573241770).

Almost surely, 213108523450 is an apocalyptic number.

13108523450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13108523450 is an abundant number, since it is smaller than the sum of its proper divisors (14407081510).

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

13108523450 is a wasteful number, since it uses less digits than its factorization.

13108523450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821903 (or 821898 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 13108523450 in words is "thirteen billion, one hundred eight million, five hundred twenty-three thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 29 50 55 58 110 145 275 290 319 550 638 725 1450 1595 3190 7975 15950 821851 1643702 4109255 8218510 9040361 18080722 20546275 23833679 41092550 45201805 47667358 90403610 119168395 226009025 238336790 262170469 452018050 524340938 595841975 1191683950 1310852345 2621704690 6554261725 13108523450