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131330051503 = 718761435929
BaseRepresentation
bin111101001001111100…
…0011000110110101111
3110112222121122212021121
41322103320120312233
54122430443122003
6140155430441411
712326324006350
oct1722370306657
9415877585247
10131330051503
1150773432552
1221552203267
13c4cc602061
1464dbdadd27
1536399dccbd
hex1e93e18daf

131330051503 has 4 divisors (see below), whose sum is σ = 150091487440. Its totient is φ = 112568615568.

The previous prime is 131330051483. The next prime is 131330051507. The reversal of 131330051503 is 305150033131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131330051503 - 25 = 131330051471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330051507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9380717958 + ... + 9380717971.

It is an arithmetic number, because the mean of its divisors is an integer number (37522871860).

Almost surely, 2131330051503 is an apocalyptic number.

131330051503 is a deficient number, since it is larger than the sum of its proper divisors (18761435937).

131330051503 is an equidigital number, since it uses as much as digits as its factorization.

131330051503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18761435936.

The product of its (nonzero) digits is 2025, while the sum is 25.

Adding to 131330051503 its reverse (305150033131), we get a palindrome (436480084634).

The spelling of 131330051503 in words is "one hundred thirty-one billion, three hundred thirty million, fifty-one thousand, five hundred three".

Divisors: 1 7 18761435929 131330051503