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117107621 = 1945713487
BaseRepresentation
bin1101111101011…
…10101110100101
322011100200110022
412332232232211
5214434420441
615342004525
72621253431
oct676565645
9264320408
10117107621
1160116764
1233276745
131b353567
14117a59c1
15a43384b
hex6faeba5

117107621 has 8 divisors (see below), whose sum is σ = 123550080. Its totient is φ = 110693088.

The previous prime is 117107587. The next prime is 117107629. The reversal of 117107621 is 126701711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117107621 - 210 = 117106597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117107629) 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, 1940 + ... + 15426.

It is an arithmetic number, because the mean of its divisors is an integer number (15443760).

Almost surely, 2117107621 is an apocalyptic number.

It is an amenable number.

117107621 is a deficient number, since it is larger than the sum of its proper divisors (6442459).

117107621 is a wasteful number, since it uses less digits than its factorization.

117107621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13963.

The product of its (nonzero) digits is 588, while the sum is 26.

The square root of 117107621 is about 10821.6274654046. The cubic root of 117107621 is about 489.2472420646.

The spelling of 117107621 in words is "one hundred seventeen million, one hundred seven thousand, six hundred twenty-one".

Divisors: 1 19 457 8683 13487 256253 6163559 117107621