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12501708020087 = 1113294173527781
BaseRepresentation
bin1011010111101100011111…
…0111011001100101110111
31122021011002112020020010012
42311323013313121211313
53114311444223120322
642331112210050435
72430134656556306
oct265730767314567
948234075206105
1012501708020087
113a8aa43293050
12149aab8879a1b
136c8ba1664520
1431312b9b443d
1516a2e898dae2
hexb5ec7dd9977

12501708020087 has 32 divisors (see below), whose sum is σ = 15564360893760. Its totient is φ = 9882133632000.

The previous prime is 12501708020047. The next prime is 12501708020101. The reversal of 12501708020087 is 78002080710521.

It is a cyclic number.

It is not a de Polignac number, because 12501708020087 - 210 = 12501708019063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501708020047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36593864 + ... + 36933917.

It is an arithmetic number, because the mean of its divisors is an integer number (486386277930).

Almost surely, 212501708020087 is an apocalyptic number.

12501708020087 is a deficient number, since it is larger than the sum of its proper divisors (3062652873673).

12501708020087 is a wasteful number, since it uses less digits than its factorization.

12501708020087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73527875.

The product of its (nonzero) digits is 62720, while the sum is 41.

The spelling of 12501708020087 in words is "twelve trillion, five hundred one billion, seven hundred eight million, twenty thousand, eighty-seven".

Divisors: 1 11 13 29 41 143 319 377 451 533 1189 4147 5863 13079 15457 170027 73527781 808805591 955861153 2132305649 3014639021 10514472683 23455362139 27719973437 33161029231 39190307273 87424531609 304919707807 431093380003 961669847699 1136518910917 12501708020087