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72413269 = 235216043
BaseRepresentation
bin1000101000011…
…11000001010101
312001020222022221
410110033001111
5122014211034
611104022341
71536334255
oct424170125
9161228287
1072413269
113796a185
12203019b1
13120050b6
14988d965
156555bb4
hex450f055

72413269 has 8 divisors (see below), whose sum is σ = 75719232. Its totient is φ = 69120480.

The previous prime is 72413233. The next prime is 72413287. The reversal of 72413269 is 96231427.

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

It is a cyclic number.

It is not a de Polignac number, because 72413269 - 27 = 72413141 is a prime.

It is a super-2 number, since 2×724132692 = 10487363054532722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72413069) 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, 8962 + ... + 15004.

It is an arithmetic number, because the mean of its divisors is an integer number (9464904).

Almost surely, 272413269 is an apocalyptic number.

It is an amenable number.

72413269 is a deficient number, since it is larger than the sum of its proper divisors (3305963).

72413269 is a wasteful number, since it uses less digits than its factorization.

72413269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6587.

The product of its digits is 18144, while the sum is 34.

The square root of 72413269 is about 8509.5986391839. The cubic root of 72413269 is about 416.8112041134.

It can be divided in two parts, 724132 and 69, that added together give a square (724201 = 8512).

The spelling of 72413269 in words is "seventy-two million, four hundred thirteen thousand, two hundred sixty-nine".

Divisors: 1 23 521 6043 11983 138989 3148403 72413269