Search a number
-
+
72448941 = 324149647
BaseRepresentation
bin1000101000101…
…11101110101101
312001022210021010
410110113232231
5122021331231
611104455433
71536543255
oct424275655
9161283233
1072448941
1137993a64
122031a579
13120183c6
14989c965
156561546
hex4517bad

72448941 has 4 divisors (see below), whose sum is σ = 96598592. Its totient is φ = 48299292.

The previous prime is 72448939. The next prime is 72448967. The reversal of 72448941 is 14984427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 72448941 - 21 = 72448939 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 72448941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72448141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12074821 + ... + 12074826.

It is an arithmetic number, because the mean of its divisors is an integer number (24149648).

Almost surely, 272448941 is an apocalyptic number.

It is an amenable number.

72448941 is a deficient number, since it is larger than the sum of its proper divisors (24149651).

72448941 is a wasteful number, since it uses less digits than its factorization.

72448941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24149650.

The product of its digits is 64512, while the sum is 39.

The square root of 72448941 is about 8511.6943671633. The cubic root of 72448941 is about 416.8796356254.

The spelling of 72448941 in words is "seventy-two million, four hundred forty-eight thousand, nine hundred forty-one".

Divisors: 1 3 24149647 72448941