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492906920 = 235114189307
BaseRepresentation
bin11101011000010…
…010100110101000
31021100111021011212
4131120102212220
52002141010140
6120524412252
715133432262
oct3530224650
91240437155
10492906920
112332622a0
121190a7088
137b1706cc
144966ab32
152d416765
hex1d6129a8

492906920 has 128 divisors (see below), whose sum is σ = 1257379200. Its totient is φ = 172339200.

The previous prime is 492906899. The next prime is 492906923. The reversal of 492906920 is 29609294.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (492906923) 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 31 ways as a sum of consecutive naturals, for example, 1605407 + ... + 1605713.

It is an arithmetic number, because the mean of its divisors is an integer number (9823275).

Almost surely, 2492906920 is an apocalyptic number.

492906920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492906920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628689600).

492906920 is an abundant number, since it is smaller than the sum of its proper divisors (764472280).

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

492906920 is a wasteful number, since it uses less digits than its factorization.

492906920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 492906920 is about 22201.5071560469. The cubic root of 492906920 is about 789.9294494493.

The spelling of 492906920 in words is "four hundred ninety-two million, nine hundred six thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 41 44 55 82 88 89 110 164 178 205 220 307 328 356 410 440 445 451 614 712 820 890 902 979 1228 1535 1640 1780 1804 1958 2255 2456 3070 3377 3560 3608 3649 3916 4510 4895 6140 6754 7298 7832 9020 9790 12280 12587 13508 14596 16885 18040 18245 19580 25174 27016 27323 29192 33770 36490 39160 40139 50348 54646 62935 67540 72980 80278 100696 109292 125870 135080 136615 138457 145960 160556 200695 218584 251740 273230 276914 300553 321112 401390 503480 546460 553828 601106 692285 802780 1092920 1107656 1120243 1202212 1384570 1502765 1605560 2240486 2404424 2769140 3005530 4480972 5538280 5601215 6011060 8961944 11202430 12022120 12322673 22404860 24645346 44809720 49290692 61613365 98581384 123226730 246453460 492906920