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117872041 = 716838863
BaseRepresentation
bin1110000011010…
…01010110101001
322012210112001011
413001221112221
5220133401131
615410223521
72630616160
oct701512651
9265715034
10117872041
1160599011
1233584ba1
131b560491
14119243d7
15a5350b1
hex70695a9

117872041 has 4 divisors (see below), whose sum is σ = 134710912. Its totient is φ = 101033172.

The previous prime is 117872039. The next prime is 117872059. The reversal of 117872041 is 140278711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140278711 = 612299651.

It is a cyclic number.

It is not a de Polignac number, because 117872041 - 21 = 117872039 is a prime.

It is a super-3 number, since 3×1178720413 (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 117871994 and 117872012.

It is not an unprimeable number, because it can be changed into a prime (117872071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8419425 + ... + 8419438.

It is an arithmetic number, because the mean of its divisors is an integer number (33677728).

Almost surely, 2117872041 is an apocalyptic number.

It is an amenable number.

117872041 is a deficient number, since it is larger than the sum of its proper divisors (16838871).

117872041 is an equidigital number, since it uses as much as digits as its factorization.

117872041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16838870.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 117872041 is about 10856.8891032376. The cubic root of 117872041 is about 490.3094546716.

The spelling of 117872041 in words is "one hundred seventeen million, eight hundred seventy-two thousand, forty-one".

Divisors: 1 7 16838863 117872041