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123738089401 = 2931829166031
BaseRepresentation
bin111001100111101011…
…1010110011110111001
3102211101112001020011001
41303033113112132321
54011403422330101
6132502224405001
711640226256143
oct1631727263671
9384345036131
10123738089401
1148527a20003
121bb93776761
13b88c785ca4
145dbb99dc93
153343242901
hex1ccf5d67b9

123738089401 has 16 divisors (see below), whose sum is σ = 132294297600. Its totient is φ = 115477185600.

The previous prime is 123738089383. The next prime is 123738089407. The reversal of 123738089401 is 104980837321.

It is a cyclic number.

It is not a de Polignac number, because 123738089401 - 29 = 123738088889 is a prime.

It is a super-2 number, since 2×1237380894012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123738089407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 662256 + ... + 828286.

It is an arithmetic number, because the mean of its divisors is an integer number (8268393600).

Almost surely, 2123738089401 is an apocalyptic number.

It is an amenable number.

123738089401 is a deficient number, since it is larger than the sum of its proper divisors (8556208199).

123738089401 is a wasteful number, since it uses less digits than its factorization.

123738089401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166920.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 123738089401 in words is "one hundred twenty-three billion, seven hundred thirty-eight million, eighty-nine thousand, four hundred one".

Divisors: 1 29 31 829 899 24041 25699 166031 745271 4814899 5146961 137639699 149261869 3991551271 4266830669 123738089401