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123052400230105 = 5165457148742453
BaseRepresentation
bin11011111110101001011110…
…100110101011111011011001
3121010200200202100022210201201
4123332221132212223323121
5112112042303424330410
61113413254155114201
734630146122066353
oct3376513646537331
9533620670283651
10123052400230105
1136232258a62385
1211974467a42961
135387a3a065b98
142255aa73760d3
15e35d1e30d83a
hex6fea5e9abed9

123052400230105 has 8 divisors (see below), whose sum is σ = 147663773723592. Its totient is φ = 98441324552448.

The previous prime is 123052400230093. The next prime is 123052400230117. The reversal of 123052400230105 is 501032004250321.

It is an interprime number because it is at equal distance from previous prime (123052400230093) and next prime (123052400230117).

It can be written as a sum of positive squares in 4 ways, for example, as 6095723978304 + 116956676251801 = 2468952^2 + 10814651^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123052400230105 - 219 = 123052399705817 is a prime.

It is a super-2 number, since 2×1230524002301052 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73543942 + ... + 75198511.

It is an arithmetic number, because the mean of its divisors is an integer number (18457971715449).

Almost surely, 2123052400230105 is an apocalyptic number.

It is an amenable number.

123052400230105 is a deficient number, since it is larger than the sum of its proper divisors (24611373493487).

123052400230105 is a wasteful number, since it uses less digits than its factorization.

123052400230105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148907915.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 123052400230105 its reverse (501032004250321), we get a palindrome (624084404480426).

The spelling of 123052400230105 in words is "one hundred twenty-three trillion, fifty-two billion, four hundred million, two hundred thirty thousand, one hundred five".

Divisors: 1 5 165457 827285 148742453 743712265 24610480046021 123052400230105