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118074420 = 22325719239
BaseRepresentation
bin1110000100110…
…10110000110100
322020011210122200
413002122300310
5220211340140
615414424500
72632421202
oct702326064
9266153580
10118074420
1160717072
1233662130
131b601629
1411978072
15a575030
hex709ac34

118074420 has 72 divisors (see below), whose sum is σ = 363242880. Its totient is φ = 31039680.

The previous prime is 118074419. The next prime is 118074421. The reversal of 118074420 is 24470811.

It is an interprime number because it is at equal distance from previous prime (118074419) and next prime (118074421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118074421) 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, 8161 + ... + 17399.

It is an arithmetic number, because the mean of its divisors is an integer number (5045040).

Almost surely, 2118074420 is an apocalyptic number.

118074420 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 118074420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181621440).

118074420 is an abundant number, since it is smaller than the sum of its proper divisors (245168460).

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

118074420 is a wasteful number, since it uses less digits than its factorization.

118074420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325 (or 9320 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 118074420 is about 10866.2054094334. The cubic root of 118074420 is about 490.5899045582.

The spelling of 118074420 in words is "one hundred eighteen million, seventy-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 71 90 142 180 213 284 355 426 639 710 852 1065 1278 1420 2130 2556 3195 4260 6390 9239 12780 18478 27717 36956 46195 55434 83151 92390 110868 138585 166302 184780 277170 332604 415755 554340 655969 831510 1311938 1663020 1967907 2623876 3279845 3935814 5903721 6559690 7871628 9839535 11807442 13119380 19679070 23614884 29518605 39358140 59037210 118074420