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487252140 = 223561671987
BaseRepresentation
bin11101000010101…
…110000010101100
31020221211222021120
4131002232002230
51444214032030
6120203300540
715034401114
oct3502560254
91227758246
10487252140
1123004a821
1211721a750
1379c4089b
14489d8044
152cb9b010
hex1d0ae0ac

487252140 has 96 divisors (see below), whose sum is σ = 1408076544. Its totient is φ = 125832960.

The previous prime is 487252133. The next prime is 487252153. The reversal of 487252140 is 41252784.

It is an unprimeable number.

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, 244227 + ... + 246213.

It is an arithmetic number, because the mean of its divisors is an integer number (14667464).

Almost surely, 2487252140 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 487252140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704038272).

487252140 is an abundant number, since it is smaller than the sum of its proper divisors (920824404).

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

487252140 is a wasteful number, since it uses less digits than its factorization.

487252140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127 (or 2125 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 487252140 is about 22073.7885284787. The cubic root of 487252140 is about 786.8970522035.

The spelling of 487252140 in words is "four hundred eighty-seven million, two hundred fifty-two thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 67 122 134 183 201 244 268 305 335 366 402 610 670 732 804 915 1005 1220 1340 1830 1987 2010 3660 3974 4020 4087 5961 7948 8174 9935 11922 12261 16348 19870 20435 23844 24522 29805 39740 40870 49044 59610 61305 81740 119220 121207 122610 133129 242414 245220 266258 363621 399387 484828 532516 606035 665645 727242 798774 1212070 1331290 1454484 1597548 1818105 1996935 2424140 2662580 3636210 3993870 7272420 7987740 8120869 16241738 24362607 32483476 40604345 48725214 81208690 97450428 121813035 162417380 243626070 487252140