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123023471054 = 21161797115021
BaseRepresentation
bin111001010010011000…
…1010011000111001110
3102202112201100212001212
41302210301103013032
54003423002033204
6132303255534422
711613431151551
oct1624461230716
9382481325055
10123023471054
11481a05a6730
121ba1438a412
13b7a76c8bb3
145d50adc698
153300633c6e
hex1ca4c531ce

123023471054 has 32 divisors (see below), whose sum is σ = 204869824992. Its totient is φ = 54933552000.

The previous prime is 123023471029. The next prime is 123023471071. The reversal of 123023471054 is 450174320321.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123023471054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012064 + ... + 1127084.

It is an arithmetic number, because the mean of its divisors is an integer number (6402182031).

Almost surely, 2123023471054 is an apocalyptic number.

123023471054 is a deficient number, since it is larger than the sum of its proper divisors (81846353938).

123023471054 is a wasteful number, since it uses less digits than its factorization.

123023471054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115892.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 123023471054 its reverse (450174320321), we get a palindrome (573197791375).

The spelling of 123023471054 in words is "one hundred twenty-three billion, twenty-three million, four hundred seventy-one thousand, fifty-four".

Divisors: 1 2 11 22 61 122 671 797 1342 1594 8767 17534 48617 97234 115021 230042 534787 1069574 1265231 2530462 7016281 14032562 77179091 91671737 154358182 183343474 1008389107 2016778214 5591975957 11183951914 61511735527 123023471054