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485039988 = 223417107823
BaseRepresentation
bin11100111010010…
…001111101110100
31020210200120210000
4130322101331310
51443132234423
6120044031300
715006525516
oct3472217564
91223616700
10485039988
112298797a4
12116532530
1379647a14
14485bdbb6
152c8b0843
hex1ce91f74

485039988 has 120 divisors (see below), whose sum is σ = 1356772032. Its totient is φ = 150564096.

The previous prime is 485039987. The next prime is 485040011. The reversal of 485039988 is 889930584.

It is a happy number.

485039988 is a `hidden beast` number, since 48 + 503 + 9 + 98 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485039983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 588945 + ... + 589767.

Almost surely, 2485039988 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 485039988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678386016).

485039988 is an abundant number, since it is smaller than the sum of its proper divisors (871732044).

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

485039988 is a wasteful number, since it uses less digits than its factorization.

485039988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 485039988 is about 22023.6234076048. The cubic root of 485039988 is about 785.7043932387.

The spelling of 485039988 in words is "four hundred eighty-five million, thirty-nine thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 81 102 107 108 153 162 204 214 306 321 324 428 459 612 642 823 918 963 1284 1377 1646 1819 1836 1926 2469 2754 2889 3292 3638 3852 4938 5457 5508 5778 7276 7407 8667 9876 10914 11556 13991 14814 16371 17334 21828 22221 27982 29628 32742 34668 41973 44442 49113 55964 65484 66663 83946 88061 88884 98226 125919 133326 147339 167892 176122 196452 251838 264183 266652 294678 352244 377757 503676 528366 589356 755514 792549 1056732 1133271 1497037 1511028 1585098 2266542 2377647 2994074 3170196 4491111 4533084 4755294 5988148 7132941 8982222 9510588 13473333 14265882 17964444 26946666 28531764 40419999 53893332 80839998 121259997 161679996 242519994 485039988