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108940028450 = 25211198072779
BaseRepresentation
bin110010101110101010…
…1001110101000100010
3101102012012212211202112
41211131111032220202
53241102121402300
6122014002515322
710604430651251
oct1453525165042
9342165784675
10108940028450
1142223895870
1219143965b42
13a371a229c6
1453b6504798
152c7901be35
hex195d54ea22

108940028450 has 24 divisors (see below), whose sum is σ = 221049222480. Its totient is φ = 39614555600.

The previous prime is 108940028447. The next prime is 108940028453. The reversal of 108940028450 is 54820049801.

It is an interprime number because it is at equal distance from previous prime (108940028447) and next prime (108940028453).

It is a junction number, because it is equal to n+sod(n) for n = 108940028398 and 108940028407.

It is not an unprimeable number, because it can be changed into a prime (108940028453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99035840 + ... + 99036939.

It is an arithmetic number, because the mean of its divisors is an integer number (9210384270).

Almost surely, 2108940028450 is an apocalyptic number.

108940028450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108940028450 is an abundant number, since it is smaller than the sum of its proper divisors (112109194030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108940028450 is a wasteful number, since it uses less digits than its factorization.

108940028450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198072802 (or 198072797 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 108940028450 in words is "one hundred eight billion, nine hundred forty million, twenty-eight thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 198072779 396145558 990363895 1980727790 2178800569 4357601138 4951819475 9903638950 10894002845 21788005690 54470014225 108940028450