Search a number
-
+
7672041021 = 38231310697
BaseRepresentation
bin1110010010100101…
…00000111000111101
3201210200022001202110
413021102200320331
5111203020303041
63305142244233
7361056162351
oct71122407075
921720261673
107672041021
113287737a77
1215a1426679
13953606358
1452acd7461
152ed817516
hex1c94a0e3d

7672041021 has 8 divisors (see below), whose sum is σ = 10230663744. Its totient is φ = 5114056160.

The previous prime is 7672040953. The next prime is 7672041049. The reversal of 7672041021 is 1201402767.

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 7672041021 - 219 = 7671516733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7672041021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7672041071) 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, 130656 + ... + 180041.

It is an arithmetic number, because the mean of its divisors is an integer number (1278832968).

Almost surely, 27672041021 is an apocalyptic number.

It is an amenable number.

7672041021 is a deficient number, since it is larger than the sum of its proper divisors (2558622723).

7672041021 is a wasteful number, since it uses less digits than its factorization.

7672041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318931.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 7672041021 is about 87590.1879265024. The cubic root of 7672041021 is about 1972.2878777099.

Adding to 7672041021 its reverse (1201402767), we get a palindrome (8873443788).

The spelling of 7672041021 in words is "seven billion, six hundred seventy-two million, forty-one thousand, twenty-one".

Divisors: 1 3 8231 24693 310697 932091 2557347007 7672041021