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7630990 = 25977867
BaseRepresentation
bin11101000111000010001110
3112100200202021
4131013002032
53423142430
6431320354
7121601533
oct35070216
915320667
107630990
114342304
1226800ba
1317724a3
141028d8a
15a0b07a
hex74708e

7630990 has 16 divisors (see below), whose sum is σ = 13879152. Its totient is φ = 3020544.

The previous prime is 7630979. The next prime is 7630999. The reversal of 7630990 is 990367.

It is a super-3 number, since 3×76309903 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7630999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2964 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (867447).

Almost surely, 27630990 is an apocalyptic number.

7630990 is a deficient number, since it is larger than the sum of its proper divisors (6248162).

7630990 is a wasteful number, since it uses less digits than its factorization.

7630990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7971.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 7630990 is about 2762.4246596061. The cubic root of 7630990 is about 196.8763858137.

The spelling of 7630990 in words is "seven million, six hundred thirty thousand, nine hundred ninety".

Divisors: 1 2 5 10 97 194 485 970 7867 15734 39335 78670 763099 1526198 3815495 7630990