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108379420 = 22517192883
BaseRepresentation
bin1100111010110…
…11110100011100
321112221020121121
412131123310130
5210221120140
614430540324
72454131662
oct635336434
9245836547
10108379420
11561a5076
12303676a4
13195b8846
1410572c32
1597ac64a
hex675bd1c

108379420 has 72 divisors (see below), whose sum is σ = 254623824. Its totient is φ = 38610432.

The previous prime is 108379417. The next prime is 108379421. The reversal of 108379420 is 24973801.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108379421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122299 + ... + 123181.

It is an arithmetic number, because the mean of its divisors is an integer number (3536442).

Almost surely, 2108379420 is an apocalyptic number.

108379420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108379420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127311912).

108379420 is an abundant number, since it is smaller than the sum of its proper divisors (146244404).

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

108379420 is a wasteful number, since it uses less digits than its factorization.

108379420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 108379420 is about 10410.5436937751. The cubic root of 108379420 is about 476.7773413008. Note that the first 3 decimals are identical.

The spelling of 108379420 in words is "one hundred eight million, three hundred seventy-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 170 190 323 340 361 380 646 722 883 1292 1444 1615 1766 1805 3230 3532 3610 4415 6137 6460 7220 8830 12274 15011 16777 17660 24548 30022 30685 33554 60044 61370 67108 75055 83885 122740 150110 167770 285209 300220 318763 335540 570418 637526 1140836 1275052 1426045 1593815 2852090 3187630 5418971 5704180 6375260 10837942 21675884 27094855 54189710 108379420