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914639049 = 321725932
BaseRepresentation
bin110110100001000…
…100100011001001
32100202001110220100
4312201010203021
53333121422144
6230431520013
731444206102
oct6641044311
92322043810
10914639049
1142a320945
12216389009
1311765094c
148968b3a9
155546e269
hex368448c9

914639049 has 27 divisors (see below), whose sum is σ = 1405801813. Its totient is φ = 572923392.

The previous prime is 914639023. The next prime is 914639087. The reversal of 914639049 is 940936419.

The square root of 914639049 is 30243.

It is a perfect power (a square), and thus also a powerful number.

914639049 is a `hidden beast` number, since 9 + 1 + 4 + 639 + 0 + 4 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 146240649 + 768398400 = 12093^2 + 27720^2 .

It is not a de Polignac number, because 914639049 - 25 = 914639017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 914638995 and 914639013.

It is not an unprimeable number, because it can be changed into a prime (914639449) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1542097 + ... + 1542689.

Almost surely, 2914639049 is an apocalyptic number.

914639049 is the 30243-rd square number.

914639049 is the 15122-nd centered octagonal number.

It is an amenable number.

914639049 is a deficient number, since it is larger than the sum of its proper divisors (491162764).

914639049 is an equidigital number, since it uses as much as digits as its factorization.

914639049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The cubic root of 914639049 is about 970.6960140841.

The spelling of 914639049 in words is "nine hundred fourteen million, six hundred thirty-nine thousand, forty-nine".

Divisors: 1 3 9 17 51 153 289 593 867 1779 2601 5337 10081 30243 90729 171377 351649 514131 1054947 1542393 3164841 5978033 17934099 53802297 101626561 304879683 914639049