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980490 = 235722329
BaseRepresentation
bin11101111011000001010
31211210222110
43233120022
5222333430
633003150
711222400
oct3573012
91753873
10980490
1160a725
123b34b6
13284394
141b7470
151457b0
hexef60a

980490 has 96 divisors (see below), whose sum is σ = 2954880. Its totient is φ = 206976.

The previous prime is 980489. The next prime is 980491. The reversal of 980490 is 94089.

980490 = T36 + T37 + ... + T180.

It is an interprime number because it is at equal distance from previous prime (980489) and next prime (980491).

It is a super-2 number, since 2×9804902 = 1922721280200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (980491) 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 47 ways as a sum of consecutive naturals, for example, 33796 + ... + 33824.

It is an arithmetic number, because the mean of its divisors is an integer number (30780).

2980490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 980490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477440).

980490 is an abundant number, since it is smaller than the sum of its proper divisors (1974390).

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

980490 is a wasteful number, since it uses less digits than its factorization.

980490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 980490 is about 990.1969501064. The cubic root of 980490 is about 99.3453908860.

The spelling of 980490 in words is "nine hundred eighty thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 29 30 35 42 46 49 58 69 70 87 98 105 115 138 145 147 161 174 203 210 230 245 290 294 322 345 406 435 483 490 609 667 690 735 805 870 966 1015 1127 1218 1334 1421 1470 1610 2001 2030 2254 2415 2842 3045 3335 3381 4002 4263 4669 4830 5635 6090 6670 6762 7105 8526 9338 10005 11270 14007 14210 16905 20010 21315 23345 28014 32683 33810 42630 46690 65366 70035 98049 140070 163415 196098 326830 490245 980490