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7421031472 = 243114961757
BaseRepresentation
bin1101110100101001…
…11111010000110000
3201011011222110101111
412322110333100300
5110144241001342
63224214243104
7351620504161
oct67224772060
921134873344
107421031472
113168a84868
121531356494
139135cc2aa
14505837768
152d6784217
hex1ba53f430

7421031472 has 20 divisors (see below), whose sum is σ = 14842063936. Its totient is φ = 3590821440.

The previous prime is 7421031467. The next prime is 7421031493. The reversal of 7421031472 is 2741301247.

7421031472 is an admirable number.

It is a super-3 number, since 3×74210314723 (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7480383 + ... + 7481374.

Almost surely, 27421031472 is an apocalyptic number.

It is an amenable number.

7421031472 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7421031472 is a wasteful number, since it uses less digits than its factorization.

7421031472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14961796 (or 14961790 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 7421031472 is about 86145.4088852099. The cubic root of 7421031472 is about 1950.5395370508.

The spelling of 7421031472 in words is "seven billion, four hundred twenty-one million, thirty-one thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 31 62 124 248 496 14961757 29923514 59847028 119694056 239388112 463814467 927628934 1855257868 3710515736 7421031472