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117732020 = 2257840943
BaseRepresentation
bin1110000010001…
…11001010110100
322012112101222012
413001013022310
5220114411040
615403223352
72626464020
oct701071264
9265471865
10117732020
116050289a
1233517b58
131b511823
14118c9380
15a508865
hex70472b4

117732020 has 24 divisors (see below), whose sum is σ = 282557184. Its totient is φ = 40365216.

The previous prime is 117732019. The next prime is 117732023. The reversal of 117732020 is 20237711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117732023) 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, 420332 + ... + 420611.

It is an arithmetic number, because the mean of its divisors is an integer number (11773216).

Almost surely, 2117732020 is an apocalyptic number.

117732020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117732020 is an abundant number, since it is smaller than the sum of its proper divisors (164825164).

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

117732020 is a wasteful number, since it uses less digits than its factorization.

117732020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840959 (or 840957 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 117732020 is about 10850.4387008084. The cubic root of 117732020 is about 490.1152304314.

Adding to 117732020 its reverse (20237711), we get a palindrome (137969731).

The spelling of 117732020 in words is "one hundred seventeen million, seven hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 840943 1681886 3363772 4204715 5886601 8409430 11773202 16818860 23546404 29433005 58866010 117732020