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72067151 = 1354110247
BaseRepresentation
bin1000100101110…
…10100001001111
312000121101112202
410102322201033
5121422122101
611052352115
71533363212
oct422724117
9160541482
1072067151
1137753132
122017563b
1311c136b0
1497dd779
1564d836b
hex44ba84f

72067151 has 8 divisors (see below), whose sum is σ = 77761824. Its totient is φ = 66394080.

The previous prime is 72067147. The next prime is 72067153. The reversal of 72067151 is 15176027.

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 72067151 - 22 = 72067147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72067153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910 + ... + 12156.

It is an arithmetic number, because the mean of its divisors is an integer number (9720228).

Almost surely, 272067151 is an apocalyptic number.

72067151 is a deficient number, since it is larger than the sum of its proper divisors (5694673).

72067151 is a wasteful number, since it uses less digits than its factorization.

72067151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10801.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 72067151 is about 8489.2373626846. The cubic root of 72067151 is about 416.1460574873.

The spelling of 72067151 in words is "seventy-two million, sixty-seven thousand, one hundred fifty-one".

Divisors: 1 13 541 7033 10247 133211 5543627 72067151