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7663420 = 225383171
BaseRepresentation
bin11101001110111100111100
3112102100020101
4131032330330
53430212140
6432130444
7122065222
oct35167474
915370211
107663420
114364706
122696a24
13178418b
141036b12
15a1599a
hex74ef3c

7663420 has 12 divisors (see below), whose sum is σ = 16093224. Its totient is φ = 3065360.

The previous prime is 7663399. The next prime is 7663421. The reversal of 7663420 is 243667.

7663420 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7663421) 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, 191566 + ... + 191605.

It is an arithmetic number, because the mean of its divisors is an integer number (1341102).

Almost surely, 27663420 is an apocalyptic number.

It is an amenable number.

7663420 is an abundant number, since it is smaller than the sum of its proper divisors (8429804).

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

7663420 is a wasteful number, since it uses less digits than its factorization.

7663420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383180 (or 383178 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 7663420 is about 2768.2882797859. The cubic root of 7663420 is about 197.1548851945.

It can be divided in two parts, 766 and 3420, that added together give a triangular number (4186 = T91).

The spelling of 7663420 in words is "seven million, six hundred sixty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 383171 766342 1532684 1915855 3831710 7663420