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114156781 = 1131010237
BaseRepresentation
bin1101100110111…
…10010011101101
321221210202122221
412303132103231
5213211004111
615154435341
72554213414
oct663362355
9257722587
10114156781
1159490752
1232292b51
131a85c3bb
141123847b
15a04e371
hex6cde4ed

114156781 has 4 divisors (see below), whose sum is σ = 115167132. Its totient is φ = 113146432.

The previous prime is 114156767. The next prime is 114156793. The reversal of 114156781 is 187651411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 187651411 = 238158757.

It can be written as a sum of positive squares in 2 ways, for example, as 47734281 + 66422500 = 6909^2 + 8150^2 .

It is a cyclic number.

It is not a de Polignac number, because 114156781 - 29 = 114156269 is a prime.

It is a super-2 number, since 2×1141567812 = 26063541296563922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (114156281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505006 + ... + 505231.

It is an arithmetic number, because the mean of its divisors is an integer number (28791783).

Almost surely, 2114156781 is an apocalyptic number.

It is an amenable number.

114156781 is a deficient number, since it is larger than the sum of its proper divisors (1010351).

114156781 is a wasteful number, since it uses less digits than its factorization.

114156781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010350.

The product of its digits is 6720, while the sum is 34.

The square root of 114156781 is about 10684.4176724799. The cubic root of 114156781 is about 485.1029377284.

The spelling of 114156781 in words is "one hundred fourteen million, one hundred fifty-six thousand, seven hundred eighty-one".

Divisors: 1 113 1010237 114156781