Search a number
-
+
7630890 = 2351132251
BaseRepresentation
bin11101000111000000101010
3112100200121120
4131013000222
53423142030
6431320110
7121601331
oct35070052
915320546
107630890
114342223
122680036
131772427
141028d18
15a0b010
hex74702a

7630890 has 32 divisors (see below), whose sum is σ = 18484416. Its totient is φ = 2016000.

The previous prime is 7630849. The next prime is 7630891. The reversal of 7630890 is 980367.

It is a happy number.

It is a super-3 number, since 3×76308903 (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7630891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2265 + ... + 4515.

It is an arithmetic number, because the mean of its divisors is an integer number (577638).

Almost surely, 27630890 is an apocalyptic number.

7630890 is an abundant number, since it is smaller than the sum of its proper divisors (10853526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7630890 is a wasteful number, since it uses less digits than its factorization.

7630890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7630890 is about 2762.4065595057. The cubic root of 7630890 is about 196.8755258237.

The spelling of 7630890 in words is "seven million, six hundred thirty thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 113 226 339 565 678 1130 1695 2251 3390 4502 6753 11255 13506 22510 33765 67530 254363 508726 763089 1271815 1526178 2543630 3815445 7630890