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131230332215 = 533897744487
BaseRepresentation
bin111101000110111101…
…1111111010100110111
3110112201200000121010122
41322031323333110313
54122224431112330
6140141505242155
712324003263513
oct1721573772467
9415650017118
10131230332215
1150722112a14
122152493335b
13c4b4a59268
1464cca53143
153630d915e5
hex1e8deff537

131230332215 has 8 divisors (see below), whose sum is σ = 157522885920. Its totient is φ = 104953274272.

The previous prime is 131230332209. The next prime is 131230332257. The reversal of 131230332215 is 512233032131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131230332215 - 224 = 131213554999 is a prime.

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, 3855299 + ... + 3889188.

It is an arithmetic number, because the mean of its divisors is an integer number (19690360740).

Almost surely, 2131230332215 is an apocalyptic number.

131230332215 is a deficient number, since it is larger than the sum of its proper divisors (26292553705).

131230332215 is an equidigital number, since it uses as much as digits as its factorization.

131230332215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747881.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 131230332215 its reverse (512233032131), we get a palindrome (643463364346).

The spelling of 131230332215 in words is "one hundred thirty-one billion, two hundred thirty million, three hundred thirty-two thousand, two hundred fifteen".

Divisors: 1 5 3389 16945 7744487 38722435 26246066443 131230332215