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117244945 = 531756419
BaseRepresentation
bin1101111110100…
…00010000010001
322011121122211101
412333100100101
5220003314240
615344544401
72622364666
oct677202021
9264548741
10117244945
11601aa954
1233322101
131b3a0c0c
14117dda6d
15a45e39a
hex6fd0411

117244945 has 8 divisors (see below), whose sum is σ = 145232640. Its totient is φ = 90770160.

The previous prime is 117244943. The next prime is 117244949. The reversal of 117244945 is 549442711.

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

It is not a de Polignac number, because 117244945 - 21 = 117244943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117244943) 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, 378055 + ... + 378364.

It is an arithmetic number, because the mean of its divisors is an integer number (18154080).

Almost surely, 2117244945 is an apocalyptic number.

It is an amenable number.

117244945 is a deficient number, since it is larger than the sum of its proper divisors (27987695).

117244945 is an equidigital number, since it uses as much as digits as its factorization.

117244945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756455.

The product of its digits is 40320, while the sum is 37.

The square root of 117244945 is about 10827.9704931257. The cubic root of 117244945 is about 489.4384028207.

The spelling of 117244945 in words is "one hundred seventeen million, two hundred forty-four thousand, nine hundred forty-five".

Divisors: 1 5 31 155 756419 3782095 23448989 117244945