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30021322123013 = 1322721101638681
BaseRepresentation
bin1101101001101111000100…
…01111011010011100000101
310221022000021120000211112212
412310313202033122130011
512413332131430414023
6143503334402153205
76215653230424154
oct664674217323405
9127260246024485
1030021322123013
119624a75758721
12344a400052805
131399cc99c96a0
1475b07b0b159b
15370dcbb54e78
hex1b4de23da705

30021322123013 has 8 divisors (see below), whose sum is σ = 32332077853656. Its totient is φ = 27710769715200.

The previous prime is 30021322123007. The next prime is 30021322123019. The reversal of 30021322123013 is 31032122312003.

It is an interprime number because it is at equal distance from previous prime (30021322123007) and next prime (30021322123019).

It can be written as a sum of positive squares in 4 ways, for example, as 788290052449 + 29233032070564 = 887857^2 + 5406758^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30021322123013 - 224 = 30021305345797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30021322123013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021322123019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50523968 + ... + 51114713.

It is an arithmetic number, because the mean of its divisors is an integer number (4041509731707).

Almost surely, 230021322123013 is an apocalyptic number.

It is an amenable number.

30021322123013 is a deficient number, since it is larger than the sum of its proper divisors (2310755730643).

30021322123013 is a wasteful number, since it uses less digits than its factorization.

30021322123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101661415.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30021322123013 its reverse (31032122312003), we get a palindrome (61053444435016).

The spelling of 30021322123013 in words is "thirty trillion, twenty-one billion, three hundred twenty-two million, one hundred twenty-three thousand, thirteen".

Divisors: 1 13 22721 295373 101638681 1321302853 2309332471001 30021322123013