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117471061 = 137857453
BaseRepresentation
bin1110000000001…
…11011101010101
322012001011000001
413000013131111
5220033033221
615353451301
72624326141
oct700073525
9265034001
10117471061
1160344824
1233410b31
131b44cb06
141185c221
15a4a6391
hex7007755

117471061 has 4 divisors (see below), whose sum is σ = 118328652. Its totient is φ = 116613472.

The previous prime is 117471049. The next prime is 117471073. The reversal of 117471061 is 160174711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160174711 = 317505283.

It is an interprime number because it is at equal distance from previous prime (117471049) and next prime (117471073).

It can be written as a sum of positive squares in 2 ways, for example, as 28998225 + 88472836 = 5385^2 + 9406^2 .

It is a cyclic number.

It is not a de Polignac number, because 117471061 - 219 = 116946773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117471031) 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, 428590 + ... + 428863.

It is an arithmetic number, because the mean of its divisors is an integer number (29582163).

Almost surely, 2117471061 is an apocalyptic number.

It is an amenable number.

117471061 is a deficient number, since it is larger than the sum of its proper divisors (857591).

117471061 is an equidigital number, since it uses as much as digits as its factorization.

117471061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857590.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 117471061 is about 10838.4067556076. The cubic root of 117471061 is about 489.7528407833.

The spelling of 117471061 in words is "one hundred seventeen million, four hundred seventy-one thousand, sixty-one".

Divisors: 1 137 857453 117471061