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949194481 = 308092
BaseRepresentation
bin111000100100111…
…000111011110001
32110011002002001011
4320210320323301
53420443210411
6234104310521
732344006564
oct7044707361
92404062034
10949194481
11447882954
12225a72441
1312185c251
14900c44db
15584e7c21
hex38938ef1

949194481 has 3 divisors (see below), whose sum is σ = 949225291. Its totient is φ = 949163672.

The previous prime is 949194479. The next prime is 949194497. The reversal of 949194481 is 184491949.

The square root of 949194481 is 30809.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 184491949 = 1491238201.

It can be written as a sum of positive squares in only one way, i.e., 804232881 + 144961600 = 28359^2 + 12040^2 .

It is not a de Polignac number, because 949194481 - 21 = 949194479 is a prime.

It is a super-2 number, since 2×9491944812 = 1801940325521718722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (949194431) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15405 + ... + 46213.

Almost surely, 2949194481 is an apocalyptic number.

949194481 is the 30809-th square number.

949194481 is the 15405-th centered octagonal number.

It is an amenable number.

949194481 is a deficient number, since it is larger than the sum of its proper divisors (30810).

949194481 is an frugal number, since it uses more digits than its factorization.

949194481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61618 (or 30809 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The cubic root of 949194481 is about 982.7696470832.

Multiplying 949194481 by its sum of digits (49), we get a square (46510529569 = 2156632).

The spelling of 949194481 in words is "nine hundred forty-nine million, one hundred ninety-four thousand, four hundred eighty-one".

Divisors: 1 30809 949194481