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492928020 = 22325131911087
BaseRepresentation
bin11101011000010…
…111110000010100
31021100112100010100
4131120113300110
52002142144040
6120525054100
715133550634
oct3530276024
91240470110
10492928020
11233277132
121190b7330
137b17a1b0
14496746c4
152d41cb30
hex1d617c14

492928020 has 144 divisors (see below), whose sum is σ = 1695133440. Its totient is φ = 114939648.

The previous prime is 492927997. The next prime is 492928031. The reversal of 492928020 is 20829294.

492928020 is a `hidden beast` number, since 492 + 92 + 80 + 2 + 0 = 666.

It is a super-2 number, since 2×4929280202 = 485956065802240800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38917 + ... + 50003.

It is an arithmetic number, because the mean of its divisors is an integer number (11771760).

Almost surely, 2492928020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492928020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847566720).

492928020 is an abundant number, since it is smaller than the sum of its proper divisors (1202205420).

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

492928020 is a wasteful number, since it uses less digits than its factorization.

492928020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11134 (or 11129 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 492928020 is about 22201.9823439260. The cubic root of 492928020 is about 789.9407208631.

The spelling of 492928020 in words is "four hundred ninety-two million, nine hundred twenty-eight thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 19 20 26 30 36 38 39 45 52 57 60 65 76 78 90 95 114 117 130 156 171 180 190 195 228 234 247 260 285 342 380 390 468 494 570 585 684 741 780 855 988 1140 1170 1235 1482 1710 2223 2340 2470 2964 3420 3705 4446 4940 7410 8892 11087 11115 14820 22174 22230 33261 44348 44460 55435 66522 99783 110870 133044 144131 166305 199566 210653 221740 288262 332610 399132 421306 432393 498915 576524 631959 665220 720655 842612 864786 997830 1053265 1263918 1297179 1441310 1729572 1895877 1995660 2106530 2161965 2527836 2594358 2738489 2882620 3159795 3791754 4213060 4323930 5188716 5476978 6319590 6485895 7583508 8215467 8647860 9479385 10953956 12639180 12971790 13692445 16430934 18958770 24646401 25943580 27384890 32861868 37917540 41077335 49292802 54769780 82154670 98585604 123232005 164309340 246464010 492928020