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13021000300031 = 92505114075981
BaseRepresentation
bin1011110101111011000000…
…0110001111010111111111
31201002210110220021022012112
42331132300012033113333
53201314002034100111
643405433121524235
72512510345246043
oct275366006172777
951083426238175
1013021000300031
1141701a2237a59
1215636827a367b
13735b4b676959
143303110d6023
15178a8d142e8b
hexbd7b018f5ff

13021000300031 has 4 divisors (see below), whose sum is σ = 13021015301064. Its totient is φ = 13020985299000.

The previous prime is 13021000299977. The next prime is 13021000300039. The reversal of 13021000300031 is 13000300012031.

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 13021000300031 - 218 = 13021000037887 is a prime.

It is a super-2 number, since 2×130210003000312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13021000299979 and 13021000300015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021000300039) 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, 6112940 + ... + 7963041.

It is an arithmetic number, because the mean of its divisors is an integer number (3255253825266).

Almost surely, 213021000300031 is an apocalyptic number.

13021000300031 is a deficient number, since it is larger than the sum of its proper divisors (15001033).

13021000300031 is an equidigital number, since it uses as much as digits as its factorization.

13021000300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15001032.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13021000300031 its reverse (13000300012031), we get a palindrome (26021300312062).

The spelling of 13021000300031 in words is "thirteen trillion, twenty-one billion, three hundred thousand, thirty-one".

Divisors: 1 925051 14075981 13021000300031