Search a number
-
+
2972807 = 17315641
BaseRepresentation
bin1011010101110010000111
312121000220222
423111302013
51230112212
6143414555
734161035
oct13256207
95530828
102972807
111750572
12bb445b
13801176
14575555
153dac72
hex2d5c87

2972807 has 8 divisors (see below), whose sum is σ = 3249792. Its totient is φ = 2707200.

The previous prime is 2972803. The next prime is 2972821. The reversal of 2972807 is 7082792.

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 2972807 - 22 = 2972803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972803) 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, 2294 + ... + 3347.

It is an arithmetic number, because the mean of its divisors is an integer number (406224).

22972807 is an apocalyptic number.

2972807 is a deficient number, since it is larger than the sum of its proper divisors (276985).

2972807 is a wasteful number, since it uses less digits than its factorization.

2972807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2972807 is about 1724.1829949283. The cubic root of 2972807 is about 143.7878660171.

The spelling of 2972807 in words is "two million, nine hundred seventy-two thousand, eight hundred seven".

Divisors: 1 17 31 527 5641 95897 174871 2972807