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117353620 = 2258965929
BaseRepresentation
bin1101111111010…
…10110010010100
322011211011220101
412333222302110
5220020303440
615351143444
72623326556
oct677526224
9264734811
10117353620
116027456a
1233374b84
131b40b517
141182b4d6
15a48169a
hex6feac94

117353620 has 24 divisors (see below), whose sum is σ = 249215400. Its totient is φ = 46413312.

The previous prime is 117353611. The next prime is 117353629. The reversal of 117353620 is 26353711.

It is an interprime number because it is at equal distance from previous prime (117353611) and next prime (117353629).

It can be written as a sum of positive squares in 4 ways, for example, as 454276 + 116899344 = 674^2 + 10812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117353629) 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, 31185 + ... + 34744.

It is an arithmetic number, because the mean of its divisors is an integer number (10383975).

Almost surely, 2117353620 is an apocalyptic number.

117353620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117353620 is an abundant number, since it is smaller than the sum of its proper divisors (131861780).

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

117353620 is a wasteful number, since it uses less digits than its factorization.

117353620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66027 (or 66025 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 117353620 is about 10832.9875842262. The cubic root of 117353620 is about 489.5895771931.

Subtracting from 117353620 its reverse (26353711), we obtain a palindrome (90999909).

The spelling of 117353620 in words is "one hundred seventeen million, three hundred fifty-three thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 65929 131858 263716 329645 659290 1318580 5867681 11735362 23470724 29338405 58676810 117353620