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220376904 = 23311834761
BaseRepresentation
bin11010010001010…
…10111101001000
3120100200022021120
431020222331020
5422404030104
633511235240
75314113156
oct1510527510
9510608246
10220376904
11103440480
1261978b20
1336870147
14213a83d6
1514531cd9
hexd22af48

220376904 has 32 divisors (see below), whose sum is σ = 601028640. Its totient is φ = 66780800.

The previous prime is 220376873. The next prime is 220376939. The reversal of 220376904 is 409673022.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

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, 417117 + ... + 417644.

It is an arithmetic number, because the mean of its divisors is an integer number (18782145).

Almost surely, 2220376904 is an apocalyptic number.

220376904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220376904 is an abundant number, since it is smaller than the sum of its proper divisors (380651736).

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

220376904 is a wasteful number, since it uses less digits than its factorization.

220376904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834781 (or 834777 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 220376904 is about 14845.0969683596. The cubic root of 220376904 is about 604.0256191347.

The spelling of 220376904 in words is "two hundred twenty million, three hundred seventy-six thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 834761 1669522 2504283 3339044 5008566 6678088 9182371 10017132 18364742 20034264 27547113 36729484 55094226 73458968 110188452 220376904