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119011813 = 149798737
BaseRepresentation
bin1110001011111…
…11100111100101
322021221102111221
413011333213211
5220431334223
615450500341
72643404134
oct705774745
9267842457
10119011813
11611a7378
1233a346b1
131b86c1bb
1411b3d91b
15a6acb5d
hex717f9e5

119011813 has 4 divisors (see below), whose sum is σ = 119810700. Its totient is φ = 118212928.

The previous prime is 119011799. The next prime is 119011819. The reversal of 119011813 is 318110911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 318110911 = 2711173841.

It can be written as a sum of positive squares in 2 ways, for example, as 24980004 + 94031809 = 4998^2 + 9697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-119011813 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 (119011819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399220 + ... + 399517.

It is an arithmetic number, because the mean of its divisors is an integer number (29952675).

Almost surely, 2119011813 is an apocalyptic number.

It is an amenable number.

119011813 is a deficient number, since it is larger than the sum of its proper divisors (798887).

119011813 is an equidigital number, since it uses as much as digits as its factorization.

119011813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798886.

The product of its (nonzero) digits is 216, while the sum is 25.

The square root of 119011813 is about 10909.2535491664. The cubic root of 119011813 is about 491.8847486560.

The spelling of 119011813 in words is "one hundred nineteen million, eleven thousand, eight hundred thirteen".

Divisors: 1 149 798737 119011813