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678300252 = 22378075003
BaseRepresentation
bin101000011011100…
…000101001011100
31202021100020000120
4220123200221130
52342121102002
6151150154540
722544312520
oct5033405134
91667306016
10678300252
11318979023
1216b1b2a50
13aa6b23c6
1466129d80
153e837cbc
hex286e0a5c

678300252 has 24 divisors (see below), whose sum is σ = 1808800896. Its totient is φ = 193800048.

The previous prime is 678300251. The next prime is 678300281. The reversal of 678300252 is 252003876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678300251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4037418 + ... + 4037585.

It is an arithmetic number, because the mean of its divisors is an integer number (75366704).

Almost surely, 2678300252 is an apocalyptic number.

It is an amenable number.

678300252 is an abundant number, since it is smaller than the sum of its proper divisors (1130500644).

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

678300252 is a wasteful number, since it uses less digits than its factorization.

678300252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075017 (or 8075015 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 678300252 is about 26044.1980487017. The cubic root of 678300252 is about 878.6326267749.

The spelling of 678300252 in words is "six hundred seventy-eight million, three hundred thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 8075003 16150006 24225009 32300012 48450018 56525021 96900036 113050042 169575063 226100084 339150126 678300252