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131016704 = 2117131937
BaseRepresentation
bin1111100111100…
…10100000000000
3100010112100010112
413303302200000
5232020013304
621000050452
73150423620
oct763624000
9303470115
10131016704
1167a56875
1237a63a28
13211b34a0
1413586880
15b77eb6e
hex7cf2800

131016704 has 192 divisors, whose sum is σ = 348566400. Its totient is φ = 47775744.

The previous prime is 131016703. The next prime is 131016709. The reversal of 131016704 is 407610131.

It is a self number, because there is not a number n which added to its sum of digits gives 131016704.

It is not an unprimeable number, because it can be changed into a prime (131016703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3540974 + ... + 3541010.

It is an arithmetic number, because the mean of its divisors is an integer number (1815450).

Almost surely, 2131016704 is an apocalyptic number.

131016704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131016704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174283200).

131016704 is an abundant number, since it is smaller than the sum of its proper divisors (217549696).

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

131016704 is a wasteful number, since it uses less digits than its factorization.

131016704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 131016704 is about 11446.2528366274. The cubic root of 131016704 is about 507.8968935349.

Adding to 131016704 its reverse (407610131), we get a palindrome (538626835).

The spelling of 131016704 in words is "one hundred thirty-one million, sixteen thousand, seven hundred four".