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131230103202 = 232113717912927
BaseRepresentation
bin111101000110111101…
…1000111011010100010
3110112201122120221222200
41322031323013122202
54122224401300302
6140141500314030
712324001321032
oct1721573073242
9415648527880
10131230103202
1150721a76950
1221524842916
13c4b49a8c53
1464cc9d38c2
153630d4881c
hex1e8dec76a2

131230103202 has 48 divisors (see below), whose sum is σ = 318563511552. Its totient is φ = 38691920160.

The previous prime is 131230103201. The next prime is 131230103227. The reversal of 131230103202 is 202301032131.

131230103202 is a `hidden beast` number, since 1 + 312 + 30 + 1 + 0 + 320 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (131230103201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8949138 + ... + 8963789.

It is an arithmetic number, because the mean of its divisors is an integer number (6636739824).

Almost surely, 2131230103202 is an apocalyptic number.

131230103202 is an abundant number, since it is smaller than the sum of its proper divisors (187333408350).

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

131230103202 is a wasteful number, since it uses less digits than its factorization.

131230103202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17912983 (or 17912980 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 131230103202 its reverse (202301032131), we get a palindrome (333531135333).

It can be divided in two parts, 131230 and 103202, that added together give a palindrome (234432).

The spelling of 131230103202 in words is "one hundred thirty-one billion, two hundred thirty million, one hundred three thousand, two hundred two".

Divisors: 1 2 3 6 9 11 18 22 33 37 66 74 99 111 198 222 333 407 666 814 1221 2442 3663 7326 17912927 35825854 53738781 107477562 161216343 197042197 322432686 394084394 591126591 662778299 1182253182 1325556598 1773379773 1988334897 3546759546 3976669794 5965004691 7290561289 11930009382 14581122578 21871683867 43743367734 65615051601 131230103202