Search a number
-
+
108649244 = 221117145253
BaseRepresentation
bin1100111100111…
…01101100011100
321120102221202002
412132131230130
5210303233434
614440421432
72456334434
oct636355434
9246387662
10108649244
1156369870
1230477878
13196815c2
14106032c4
15981257e
hex679db1c

108649244 has 24 divisors (see below), whose sum is σ = 219624048. Its totient is φ = 46480640.

The previous prime is 108649223. The next prime is 108649259. The reversal of 108649244 is 442946801.

It is a junction number, because it is equal to n+sod(n) for n = 108649198 and 108649207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71879 + ... + 73374.

It is an arithmetic number, because the mean of its divisors is an integer number (9151002).

Almost surely, 2108649244 is an apocalyptic number.

It is an amenable number.

108649244 is an abundant number, since it is smaller than the sum of its proper divisors (110974804).

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

108649244 is a wasteful number, since it uses less digits than its factorization.

108649244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145285 (or 145283 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 108649244 is about 10423.4948074050. The cubic root of 108649244 is about 477.1726788312.

The spelling of 108649244 in words is "one hundred eight million, six hundred forty-nine thousand, two hundred forty-four".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 145253 290506 581012 1597783 2469301 3195566 4938602 6391132 9877204 27162311 54324622 108649244