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131030233312 = 25112447152123
BaseRepresentation
bin111101000001000000…
…0101011000011100000
3110112012201111112001011
41322002000223003200
54121322214431222
6140110000350304
712316023415006
oct1720200530340
9415181445034
10131030233312
115062a172720
1221489915394
13c482468c44
1464b0246a76
15361d517c77
hex1e8202b0e0

131030233312 has 48 divisors (see below), whose sum is σ = 281534061312. Its totient is φ = 59534465920.

The previous prime is 131030233307. The next prime is 131030233339. The reversal of 131030233312 is 213332030131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785283 + ... + 937405.

It is an arithmetic number, because the mean of its divisors is an integer number (5865292944).

Almost surely, 2131030233312 is an apocalyptic number.

It is an amenable number.

131030233312 is an abundant number, since it is smaller than the sum of its proper divisors (150503828000).

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

131030233312 is a wasteful number, since it uses less digits than its factorization.

131030233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154591 (or 154583 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 131030233312 its reverse (213332030131), we get a palindrome (344362263443).

The spelling of 131030233312 in words is "one hundred thirty-one billion, thirty million, two hundred thirty-three thousand, three hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 2447 4894 9788 19576 26917 39152 53834 78304 107668 152123 215336 304246 430672 608492 861344 1216984 1673353 2433968 3346706 4867936 6693412 13386824 26773648 53547296 372244981 744489962 1488979924 2977959848 4094694791 5955919696 8189389582 11911839392 16378779164 32757558328 65515116656 131030233312