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131965290208 = 2553431180533
BaseRepresentation
bin111101011100110111…
…1101000011011100000
3110121121212222022222001
41322321233220123200
54130231103241313
6140342442053344
712351136313263
oct1727157503340
9417555868861
10131965290208
1150a69a69814
12216aaaaa254
13c5a10b824b
14655c4cacda
15367566badd
hex1eb9be86e0

131965290208 has 48 divisors (see below), whose sum is σ = 265324320576. Its totient is φ = 64587128320.

The previous prime is 131965290167. The next prime is 131965290211. The reversal of 131965290208 is 802092569131.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640710 + ... + 821242.

It is an arithmetic number, because the mean of its divisors is an integer number (5527590012).

Almost surely, 2131965290208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131965290208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132662160288).

131965290208 is an abundant number, since it is smaller than the sum of its proper divisors (133359030368).

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

131965290208 is a wasteful number, since it uses less digits than its factorization.

131965290208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181027 (or 181019 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 131965290208 in words is "one hundred thirty-one billion, nine hundred sixty-five million, two hundred ninety thousand, two hundred eight".

Divisors: 1 2 4 8 16 32 53 106 212 424 431 848 862 1696 1724 3448 6896 13792 22843 45686 91372 180533 182744 361066 365488 722132 730976 1444264 2888528 5777056 9568249 19136498 38272996 76545992 77809723 153091984 155619446 306183968 311238892 622477784 1244955568 2489911136 4123915319 8247830638 16495661276 32991322552 65982645104 131965290208