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210330250030789 = 7229891663097281
BaseRepresentation
bin101111110100101101010011…
…110101101010111011000101
31000120201101010202120010021121
4233310231103311222323011
5210032022323001441124
62023200214414513541
762205600445634200
oct5764552365527305
91016641122503247
10210330250030789
1161021615931509
121b70b4b32058b1
1390490993617b5
1439d20775c6937
15194b28c2082e4
hexbf4b53d6aec5

210330250030789 has 24 divisors (see below), whose sum is σ = 255950671699800. Its totient is φ = 172110611312640.

The previous prime is 210330250030787. The next prime is 210330250030843. The reversal of 210330250030789 is 987030052033012.

It can be written as a sum of positive squares in 4 ways, for example, as 1134033308100 + 209196216722689 = 1064910^2 + 14463617^2 .

It is not a de Polignac number, because 210330250030789 - 21 = 210330250030787 is a prime.

It is a super-2 number, since 2×2103302500307892 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210330250030787) 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 23 ways as a sum of consecutive naturals, for example, 831422172 + ... + 831675109.

It is an arithmetic number, because the mean of its divisors is an integer number (10664611320825).

Almost surely, 2210330250030789 is an apocalyptic number.

210330250030789 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

210330250030789 is a deficient number, since it is larger than the sum of its proper divisors (45620421669011).

210330250030789 is a wasteful number, since it uses less digits than its factorization.

210330250030789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663097413 (or 1663097406 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 210330250030789 in words is "two hundred ten trillion, three hundred thirty billion, two hundred fifty million, thirty thousand, seven hundred eighty-nine".

Divisors: 1 7 29 49 89 203 623 1421 2581 4361 18067 126469 1663097281 11641680967 48229821149 81491766769 148015658009 337608748043 1036109606063 2363261236301 4292454082261 7252767242441 30047178575827 210330250030789