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131450211240 = 233510110845727
BaseRepresentation
bin111101001101100001…
…0110000101110101000
3110120021222202121110020
41322123002300232220
54123202223224430
6140215402120440
712332313234315
oct1723302605650
9416258677406
10131450211240
1150825243317
12215864b0120
13c51b4838aa
14650dd2bd0c
153645325b10
hex1e9b0b0ba8

131450211240 has 64 divisors (see below), whose sum is σ = 398255132160. Its totient is φ = 34706323200.

The previous prime is 131450211199. The next prime is 131450211259. The reversal of 131450211240 is 42112054131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 131450211240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5410744 + ... + 5434983.

It is an arithmetic number, because the mean of its divisors is an integer number (6222736440).

Almost surely, 2131450211240 is an apocalyptic number.

131450211240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131450211240 is an abundant number, since it is smaller than the sum of its proper divisors (266804920920).

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

131450211240 is a wasteful number, since it uses less digits than its factorization.

131450211240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10845842 (or 10845838 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 131450211240 its reverse (42112054131), we get a palindrome (173562265371).

The spelling of 131450211240 in words is "one hundred thirty-one billion, four hundred fifty million, two hundred eleven thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 101 120 202 303 404 505 606 808 1010 1212 1515 2020 2424 3030 4040 6060 12120 10845727 21691454 32537181 43382908 54228635 65074362 86765816 108457270 130148724 162685905 216914540 260297448 325371810 433829080 650743620 1095418427 1301487240 2190836854 3286255281 4381673708 5477092135 6572510562 8763347416 10954184270 13145021124 16431276405 21908368540 26290042248 32862552810 43816737080 65725105620 131450211240