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1301103405 = 3557152981
BaseRepresentation
bin100110110001101…
…0100001100101101
310100200020220100000
41031203110030231
510131040302110
6333035054513
744146124250
oct11543241455
93320226300
101301103405
11608491278
123038a1439
13179733294
14c4b2b097
157935c1c0
hex4d8d432d

1301103405 has 48 divisors (see below), whose sum is σ = 2672901504. Its totient is φ = 594786240.

The previous prime is 1301103403. The next prime is 1301103421. The reversal of 1301103405 is 5043011031.

It is not a de Polignac number, because 1301103405 - 21 = 1301103403 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301103403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67986 + ... + 84995.

It is an arithmetic number, because the mean of its divisors is an integer number (55685448).

Almost surely, 21301103405 is an apocalyptic number.

1301103405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1301103405 is an abundant number, since it is smaller than the sum of its proper divisors (1371798099).

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

1301103405 is an equidigital number, since it uses as much as digits as its factorization.

1301103405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153008 (or 152996 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1301103405 is about 36070.8109833976. The cubic root of 1301103405 is about 1091.7015773723.

Adding to 1301103405 its reverse (5043011031), we get a palindrome (6344114436).

The spelling of 1301103405 in words is "one billion, three hundred one million, one hundred three thousand, four hundred five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 81 105 135 189 243 315 405 567 945 1215 1701 2835 8505 152981 458943 764905 1070867 1376829 2294715 3212601 4130487 5354335 6884145 9637803 12391461 16063005 20652435 28913409 37174383 48189015 61957305 86740227 144567045 185871915 260220681 433701135 1301103405