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5400418821 = 372831133917
BaseRepresentation
bin1010000011110001…
…11101101000000101
3111221100211200220220
411001320331220011
542030001400241
62251513414553
7250553542200
oct50170755005
914840750826
105400418821
112321439656
12106870a459
13680ab89c5
14393334937
1521919e166
hex141e3da05

5400418821 has 48 divisors (see below), whose sum is σ = 8554279104. Its totient is φ = 3021021696.

The previous prime is 5400418799. The next prime is 5400418823. The reversal of 5400418821 is 1288140045.

It is not a de Polignac number, because 5400418821 - 25 = 5400418789 is a prime.

It is a super-2 number, since 2×54004188212 = 58329046884422060082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5400418823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1376755 + ... + 1380671.

It is an arithmetic number, because the mean of its divisors is an integer number (178214148).

Almost surely, 25400418821 is an apocalyptic number.

It is an amenable number.

5400418821 is a deficient number, since it is larger than the sum of its proper divisors (3153860283).

5400418821 is a wasteful number, since it uses less digits than its factorization.

5400418821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130 (or 4123 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 5400418821 is about 73487.5419441962. The cubic root of 5400418821 is about 1754.4559987934.

Adding to 5400418821 its reverse (1288140045), we get a palindrome (6688558866).

The spelling of 5400418821 in words is "five billion, four hundred million, four hundred eighteen thousand, eight hundred twenty-one".

Divisors: 1 3 7 21 49 83 113 147 249 339 581 791 1743 2373 3917 4067 5537 9379 11751 12201 16611 27419 28137 65653 82257 191933 196959 325111 442621 459571 575799 975333 1327863 1378713 2275777 3098347 6827331 9295041 15930439 21688429 36737543 47791317 65065287 110212629 257162801 771488403 1800139607 5400418821