Search a number
-
+
5400049221 = 33773391393
BaseRepresentation
bin1010000011101111…
…00011011001000101
3111221100010220221000
411001313203121011
542024403033341
62251501443513
7250550442510
oct50167433105
914840126830
105400049221
1123212069a6
121068570599
136809b96c8
14393279d77
152191298b6
hex141de3645

5400049221 has 32 divisors (see below), whose sum is σ = 9268209920. Its totient is φ = 3043464192.

The previous prime is 5400049211. The next prime is 5400049231. The reversal of 5400049221 is 1229400045.

It is an interprime number because it is at equal distance from previous prime (5400049211) and next prime (5400049231).

It is not a de Polignac number, because 5400049221 - 26 = 5400049157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5400049211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181900 + ... + 209493.

It is an arithmetic number, because the mean of its divisors is an integer number (289631560).

Almost surely, 25400049221 is an apocalyptic number.

It is an amenable number.

5400049221 is a deficient number, since it is larger than the sum of its proper divisors (3868160699).

5400049221 is a wasteful number, since it uses less digits than its factorization.

5400049221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391482 (or 391476 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5400049221 is about 73485.0271892173. The cubic root of 5400049221 is about 1754.4159733959.

Adding to 5400049221 its reverse (1229400045), we get a palindrome (6629449266).

The spelling of 5400049221 in words is "five billion, four hundred million, forty-nine thousand, two hundred twenty-one".

Divisors: 1 3 7 9 21 27 63 73 189 219 511 657 1533 1971 4599 13797 391393 1174179 2739751 3522537 8219253 10567611 24657759 28571689 73973277 85715067 200001823 257145201 600005469 771435603 1800016407 5400049221