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13023001230020 = 2255312285850217
BaseRepresentation
bin1011110110000010011101…
…0111001011101011000100
31201002222122100101002010122
42331200213113023223010
53201332101303330040
643410403440441112
72512611053003135
oct275404727135304
951088570332118
1013023001230020
11417102975a301
121563b40919198
137360aa0883b2
14330460b53c8c
15178b58b3b1b5
hexbd8275cbac4

13023001230020 has 24 divisors (see below), whose sum is σ = 27864308294424. Its totient is φ = 5110913689856.

The previous prime is 13023001230017. The next prime is 13023001230047. The reversal of 13023001230020 is 2003210032031.

It can be written as a sum of positive squares in 4 ways, for example, as 5510314928836 + 7512686301184 = 2347406^2 + 2740928^2 .

It is a super-2 number, since 2×130230012300202 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6142924049 + ... + 6142926168.

It is an arithmetic number, because the mean of its divisors is an integer number (1161012845601).

Almost surely, 213023001230020 is an apocalyptic number.

13023001230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023001230020 is an abundant number, since it is smaller than the sum of its proper divisors (14841307064404).

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

13023001230020 is a wasteful number, since it uses less digits than its factorization.

13023001230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12285850279 (or 12285850277 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13023001230020 its reverse (2003210032031), we get a palindrome (15026211262051).

The spelling of 13023001230020 in words is "thirteen trillion, twenty-three billion, one million, two hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 12285850217 24571700434 49143400868 61429251085 122858502170 245717004340 651150061501 1302300123002 2604600246004 3255750307505 6511500615010 13023001230020