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7421652249 = 311220445323
BaseRepresentation
bin1101110100101110…
…10110110100011001
3201011020010222221020
412322113112310121
5110144420332444
63224235433053
7351626001054
oct67227266431
921136128836
107421652249
113169369200
1215315b5789
13913788a0b
14505959a9b
152d6858119
hex1ba5d6d19

7421652249 has 12 divisors (see below), whose sum is σ = 10876912368. Its totient is φ = 4497970840.

The previous prime is 7421652229. The next prime is 7421652253. The reversal of 7421652249 is 9422561247.

It is a happy number.

It is not a de Polignac number, because 7421652249 - 224 = 7404875033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7421652249.

It is not an unprimeable number, because it can be changed into a prime (7421652229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10222299 + ... + 10223024.

It is an arithmetic number, because the mean of its divisors is an integer number (906409364).

Almost surely, 27421652249 is an apocalyptic number.

It is an amenable number.

7421652249 is a deficient number, since it is larger than the sum of its proper divisors (3455260119).

7421652249 is a wasteful number, since it uses less digits than its factorization.

7421652249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20445348 (or 20445337 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 7421652249 is about 86149.0118863821. The cubic root of 7421652249 is about 1950.5939237545.

The spelling of 7421652249 in words is "seven billion, four hundred twenty-one million, six hundred fifty-two thousand, two hundred forty-nine".

Divisors: 1 3 11 33 121 363 20445323 61335969 224898553 674695659 2473884083 7421652249