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131513501005 = 51311391444489
BaseRepresentation
bin111101001111011010…
…0001100010101001101
3110120110101212001200121
41322132310030111031
54123314424013010
6140225542424541
712334012212505
oct1723664142515
9416411761617
10131513501005
1150857a40907
12215a3732151
13c52b613063
1465184c4a05
15364ab783da
hex1e9ed0c54d

131513501005 has 16 divisors (see below), whose sum is σ = 160165051200. Its totient is φ = 103656458880.

The previous prime is 131513500999. The next prime is 131513501023. The reversal of 131513501005 is 500105315131.

It is a happy number.

It is not a de Polignac number, because 131513501005 - 23 = 131513500997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631200 + ... + 813289.

It is an arithmetic number, because the mean of its divisors is an integer number (10010315700).

Almost surely, 2131513501005 is an apocalyptic number.

It is an amenable number.

131513501005 is a deficient number, since it is larger than the sum of its proper divisors (28651550195).

131513501005 is a wasteful number, since it uses less digits than its factorization.

131513501005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444764.

The product of its (nonzero) digits is 1125, while the sum is 25.

Adding to 131513501005 its reverse (500105315131), we get a palindrome (631618816136).

The spelling of 131513501005 in words is "one hundred thirty-one billion, five hundred thirteen million, five hundred one thousand, five".

Divisors: 1 5 131 139 655 695 18209 91045 1444489 7222445 189228059 200783971 946140295 1003919855 26302700201 131513501005