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118227284 = 22737139821
BaseRepresentation
bin1110000110000…
…00000101010100
322020110120100022
413003000011110
5220231233114
615422004312
72633625650
oct703000524
9266416308
10118227284
11608109aa
1233716698
131b656096
14119b7a60
15a5a548e
hex70c0154

118227284 has 48 divisors (see below), whose sum is σ = 244890240. Its totient is φ = 48885120.

The previous prime is 118227257. The next prime is 118227289. The reversal of 118227284 is 482722811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118227289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143594 + ... + 144414.

It is an arithmetic number, because the mean of its divisors is an integer number (5101880).

Almost surely, 2118227284 is an apocalyptic number.

118227284 is a gapful number since it is divisible by the number (14) 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 118227284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122445120).

118227284 is an abundant number, since it is smaller than the sum of its proper divisors (126662956).

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

118227284 is a wasteful number, since it uses less digits than its factorization.

118227284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 1006 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 118227284 is about 10873.2370525065. The cubic root of 118227284 is about 490.8015258819.

The spelling of 118227284 in words is "one hundred eighteen million, two hundred twenty-seven thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 28 37 74 139 148 259 278 518 556 821 973 1036 1642 1946 3284 3892 5143 5747 10286 11494 20572 22988 30377 36001 60754 72002 114119 121508 144004 212639 228238 425278 456476 798833 850556 1597666 3195332 4222403 8444806 16889612 29556821 59113642 118227284