Search a number
-
+
82900749 = 327633583
BaseRepresentation
bin1001111000011…
…11011100001101
312202222210110010
410330033130031
5132210310444
612120503433
72024434101
oct474173415
9182883403
1082900749
1142882618
122391ab79
13142377c9
14b01d901
1574282b9
hex4f0f70d

82900749 has 4 divisors (see below), whose sum is σ = 110534336. Its totient is φ = 55267164.

The previous prime is 82900739. The next prime is 82900787. The reversal of 82900749 is 94700928.

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 82900749 - 211 = 82898701 is a prime.

It is a super-2 number, since 2×829007492 = 13745068369522002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82900739) 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, 13816789 + ... + 13816794.

It is an arithmetic number, because the mean of its divisors is an integer number (27633584).

Almost surely, 282900749 is an apocalyptic number.

It is an amenable number.

82900749 is a deficient number, since it is larger than the sum of its proper divisors (27633587).

82900749 is a wasteful number, since it uses less digits than its factorization.

82900749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27633586.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 82900749 is about 9104.9848434800. The cubic root of 82900749 is about 436.0331263583.

The spelling of 82900749 in words is "eighty-two million, nine hundred thousand, seven hundred forty-nine".

Divisors: 1 3 27633583 82900749