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72233049 = 373439669
BaseRepresentation
bin1000100111000…
…11000001011001
312000220211010010
410103203001121
5121442424144
611100112133
71534653660
oct423430131
9160824103
1072233049
1137856839
1220235649
1311c71065
149843dd7
15651c5b9
hex44e3059

72233049 has 8 divisors (see below), whose sum is σ = 110069440. Its totient is φ = 41276016.

The previous prime is 72233047. The next prime is 72233059. The reversal of 72233049 is 94033227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72233049 - 21 = 72233047 is a prime.

It is a super-2 number, since 2×722330492 = 10435226735672802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72233047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719814 + ... + 1719855.

It is an arithmetic number, because the mean of its divisors is an integer number (13758680).

Almost surely, 272233049 is an apocalyptic number.

It is an amenable number.

72233049 is a deficient number, since it is larger than the sum of its proper divisors (37836391).

72233049 is a wasteful number, since it uses less digits than its factorization.

72233049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439679.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 72233049 is about 8499.0028238612. The cubic root of 72233049 is about 416.4651343969.

The spelling of 72233049 in words is "seventy-two million, two hundred thirty-three thousand, forty-nine".

Divisors: 1 3 7 21 3439669 10319007 24077683 72233049