Search a number
-
+
13161639200 = 255271231719
BaseRepresentation
bin11000100000111111…
…01010110100100000
31020222020221112202112
430100133222310200
5203423334423300
610014003334452
7644105041643
oct142037526440
936866845675
1013161639200
115644447376
122673981428
131319a175b8
148cc003a5a
1552072ee35
hex3107ead20

13161639200 has 72 divisors (see below), whose sum is σ = 32583539520. Its totient is φ = 5190483200.

The previous prime is 13161639199. The next prime is 13161639277. The reversal of 13161639200 is 293616131.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59060 + ... + 172659.

It is an arithmetic number, because the mean of its divisors is an integer number (452549160).

Almost surely, 213161639200 is an apocalyptic number.

13161639200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13161639200 is an abundant number, since it is smaller than the sum of its proper divisors (19421900320).

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

13161639200 is a wasteful number, since it uses less digits than its factorization.

13161639200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231810 (or 231797 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 13161639200 in words is "thirteen billion, one hundred sixty-one million, six hundred thirty-nine thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 71 80 100 142 160 200 284 355 400 568 710 800 1136 1420 1775 2272 2840 3550 5680 7100 11360 14200 28400 56800 231719 463438 926876 1158595 1853752 2317190 3707504 4634380 5792975 7415008 9268760 11585950 16452049 18537520 23171900 32904098 37075040 46343800 65808196 82260245 92687600 131616392 164520490 185375200 263232784 329040980 411301225 526465568 658081960 822602450 1316163920 1645204900 2632327840 3290409800 6580819600 13161639200