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118941940 = 22513457469
BaseRepresentation
bin1110001011011…
…10100011110100
322021210212200001
413011232203310
5220422120230
615445201044
72642663335
oct705564364
9267725601
10118941940
1161159927
1233a00184
131b846460
1411b2228c
15a6970ca
hex716e8f4

118941940 has 24 divisors (see below), whose sum is σ = 268992360. Its totient is φ = 43916928.

The previous prime is 118941937. The next prime is 118941941. The reversal of 118941940 is 49149811.

It can be written as a sum of positive squares in 4 ways, for example, as 6666724 + 112275216 = 2582^2 + 10596^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 118941940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118941941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228475 + ... + 228994.

It is an arithmetic number, because the mean of its divisors is an integer number (11208015).

Almost surely, 2118941940 is an apocalyptic number.

118941940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118941940 is an abundant number, since it is smaller than the sum of its proper divisors (150050420).

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

118941940 is a wasteful number, since it uses less digits than its factorization.

118941940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457491 (or 457489 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 118941940 is about 10906.0506142233. The cubic root of 118941940 is about 491.7884663610.

The spelling of 118941940 in words is "one hundred eighteen million, nine hundred forty-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 457469 914938 1829876 2287345 4574690 5947097 9149380 11894194 23788388 29735485 59470970 118941940