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485205540 = 223514895431
BaseRepresentation
bin11100111010111…
…010011000100100
31020210222222212120
4130322322120210
51443203034130
6120051345540
715011115261
oct3472723044
91223888776
10485205540
11229982116
121165b22b0
13796a5191
1448624268
152c8e4910
hex1ceba624

485205540 has 48 divisors (see below), whose sum is σ = 1359738240. Its totient is φ = 129277440.

The previous prime is 485205473. The next prime is 485205547. The reversal of 485205540 is 45502584.

It is not an unprimeable number, because it can be changed into a prime (485205547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86625 + ... + 92055.

It is an arithmetic number, because the mean of its divisors is an integer number (28327880).

Almost surely, 2485205540 is an apocalyptic number.

It is an amenable number.

485205540 is an abundant number, since it is smaller than the sum of its proper divisors (874532700).

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

485205540 is a wasteful number, since it uses less digits than its factorization.

485205540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932 (or 6930 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 485205540 is about 22027.3815965493. The cubic root of 485205540 is about 785.7937742800.

The spelling of 485205540 in words is "four hundred eighty-five million, two hundred five thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1489 2978 4467 5431 5956 7445 8934 10862 14890 16293 17868 21724 22335 27155 29780 32586 44670 54310 65172 81465 89340 108620 162930 325860 8086759 16173518 24260277 32347036 40433795 48520554 80867590 97041108 121301385 161735180 242602770 485205540