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490078312 = 23174797523
BaseRepresentation
bin11101001101100…
…000000001101000
31021011011120001121
4131031200001220
52000430001222
6120344025024
715100411513
oct3515400150
91234146047
10490078312
112317000a9
12118162174
137a6c0089
1449131d7a
152d0585c7
hex1d360068

490078312 has 32 divisors (see below), whose sum is σ = 975110400. Its totient is φ = 230113024.

The previous prime is 490078301. The next prime is 490078313. The reversal of 490078312 is 213870094.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (490078313) 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, 61383 + ... + 68905.

It is an arithmetic number, because the mean of its divisors is an integer number (30472200).

Almost surely, 2490078312 is an apocalyptic number.

It is an amenable number.

490078312 is a deficient number, since it is larger than the sum of its proper divisors (485032088).

490078312 is a wasteful number, since it uses less digits than its factorization.

490078312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025 (or 8021 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 490078312 is about 22137.7124382805. The cubic root of 490078312 is about 788.4155134657.

The spelling of 490078312 in words is "four hundred ninety million, seventy-eight thousand, three hundred twelve".

Divisors: 1 2 4 8 17 34 68 136 479 958 1916 3832 7523 8143 15046 16286 30092 32572 60184 65144 127891 255782 511564 1023128 3603517 7207034 14414068 28828136 61259789 122519578 245039156 490078312