Search a number
-
+
72246937 = 748721193
BaseRepresentation
bin1000100111001…
…10011010011001
312000221112011111
410103212122121
5121443400222
611100300321
71535042320
oct423463231
9160845144
1072246937
1137866214
12202416a1
1311c77489
1498490b7
156521777
hex44e6699

72246937 has 8 divisors (see below), whose sum is σ = 82741376. Its totient is φ = 61795872.

The previous prime is 72246931. The next prime is 72246947. The reversal of 72246937 is 73964227.

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 72246937 - 23 = 72246929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72246937.

It is not an unprimeable number, because it can be changed into a prime (72246931) 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, 7188 + ... + 14005.

It is an arithmetic number, because the mean of its divisors is an integer number (10342672).

Almost surely, 272246937 is an apocalyptic number.

It is an amenable number.

72246937 is a deficient number, since it is larger than the sum of its proper divisors (10494439).

72246937 is a wasteful number, since it uses less digits than its factorization.

72246937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21687.

The product of its digits is 127008, while the sum is 40.

The square root of 72246937 is about 8499.8198216198. The cubic root of 72246937 is about 416.4918234597.

It can be divided in two parts, 7224 and 6937, that added together give a square (14161 = 1192).

The spelling of 72246937 in words is "seventy-two million, two hundred forty-six thousand, nine hundred thirty-seven".

Divisors: 1 7 487 3409 21193 148351 10320991 72246937