Search a number
-
+
2972723 = 13673413
BaseRepresentation
bin1011010101110000110011
312121000210212
423111300303
51230111343
6143414335
734160555
oct13256063
95530725
102972723
1117504a6
12bb43ab
13801110
145754d5
153dac18
hex2d5c33

2972723 has 8 divisors (see below), whose sum is σ = 3250128. Its totient is φ = 2702304.

The previous prime is 2972701. The next prime is 2972729. The reversal of 2972723 is 3272792.

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 2972723 - 210 = 2971699 is a prime.

It is an Ulam number.

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 2972723.

It is not an unprimeable number, because it can be changed into a prime (2972729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836 + ... + 2577.

It is an arithmetic number, because the mean of its divisors is an integer number (406266).

22972723 is an apocalyptic number.

2972723 is a deficient number, since it is larger than the sum of its proper divisors (277405).

2972723 is a wasteful number, since it uses less digits than its factorization.

2972723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493.

The product of its digits is 10584, while the sum is 32.

The square root of 2972723 is about 1724.1586353929. The cubic root of 2972723 is about 143.7865117084.

The spelling of 2972723 in words is "two million, nine hundred seventy-two thousand, seven hundred twenty-three".

Divisors: 1 13 67 871 3413 44369 228671 2972723