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108031857124 = 221643412
BaseRepresentation
bin110010010011100110…
…0110101000111100100
3101022211220222221220111
41210213030311013210
53232222123411444
6121343521342404
710543062430402
oct1444714650744
9338756887814
10108031857124
11418a8192254
1218b2b797a04
13a258827c19
14532ba5c472
152c24429234
hex19273351e4

108031857124 has 9 divisors (see below), whose sum is σ = 189056900361. Its totient is φ = 54015599880.

The previous prime is 108031857121. The next prime is 108031857139. The reversal of 108031857124 is 421758130801.

The square root of 108031857124 is 328682.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 54670857124 + 53361000000 = 233818^2 + 231000^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108031857121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 575194 + ... + 739534.

Almost surely, 2108031857124 is an apocalyptic number.

108031857124 is the 328682-nd square number.

It is an amenable number.

108031857124 is a deficient number, since it is larger than the sum of its proper divisors (81025043237).

108031857124 is an frugal number, since it uses more digits than its factorization.

108031857124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328686 (or 164343 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

Adding to 108031857124 its reverse (421758130801), we get a palindrome (529789987925).

The spelling of 108031857124 in words is "one hundred eight billion, thirty-one million, eight hundred fifty-seven thousand, one hundred twenty-four".

Divisors: 1 2 4 164341 328682 657364 27007964281 54015928562 108031857124