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914507149 = 2293993481
BaseRepresentation
bin110110100000100…
…100010110001101
32100201210202222011
4312200210112031
53333103212044
6230425021221
731443116413
oct6640442615
92321722864
10914507149
1142a240836
12216324811
131176058ba
14896552b3
1555445134
hex3682458d

914507149 has 4 divisors (see below), whose sum is σ = 918500860. Its totient is φ = 910513440.

The previous prime is 914507137. The next prime is 914507177. The reversal of 914507149 is 941705419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 941705419 = 6971135089.

It can be written as a sum of positive squares in 2 ways, for example, as 881674249 + 32832900 = 29693^2 + 5730^2 .

It is a cyclic number.

It is not a de Polignac number, because 914507149 - 211 = 914505101 is a prime.

It is a super-3 number, since 3×9145071493 (a number of 28 digits) contains 333 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 (914507179) 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, 1996512 + ... + 1996969.

It is an arithmetic number, because the mean of its divisors is an integer number (229625215).

Almost surely, 2914507149 is an apocalyptic number.

It is an amenable number.

914507149 is a deficient number, since it is larger than the sum of its proper divisors (3993711).

914507149 is a wasteful number, since it uses less digits than its factorization.

914507149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993710.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 914507149 is about 30240.8192514687. The cubic root of 914507149 is about 970.6493505179.

The spelling of 914507149 in words is "nine hundred fourteen million, five hundred seven thousand, one hundred forty-nine".

Divisors: 1 229 3993481 914507149