Search a number
-
+
485143490 = 251331120383
BaseRepresentation
bin11100111010101…
…011001111000010
31020210212211202102
4130322223033002
51443144042430
6120050150402
715010436336
oct3472531702
91223784672
10485143490
1122993a537
12116582402
1379682b70
14486097c6
152c8d1345
hex1ceab3c2

485143490 has 32 divisors (see below), whose sum is σ = 970776576. Its totient is φ = 173350080.

The previous prime is 485143481. The next prime is 485143537. The reversal of 485143490 is 94341584.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56162 + ... + 64221.

It is an arithmetic number, because the mean of its divisors is an integer number (30336768).

Almost surely, 2485143490 is an apocalyptic number.

485143490 is an abundant number, since it is smaller than the sum of its proper divisors (485633086).

485143490 is a wasteful number, since it uses less digits than its factorization.

485143490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120434.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 485143490 is about 22025.9730772559. The cubic root of 485143490 is about 785.7602760486.

The spelling of 485143490 in words is "four hundred eighty-five million, one hundred forty-three thousand, four hundred ninety".

Divisors: 1 2 5 10 13 26 31 62 65 130 155 310 403 806 2015 4030 120383 240766 601915 1203830 1564979 3129958 3731873 7463746 7824895 15649790 18659365 37318730 48514349 97028698 242571745 485143490