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485772872 = 23134670893
BaseRepresentation
bin11100111101000…
…100111001001000
31020212001211002212
4130331010321020
51443324212442
6120111444252
715016000304
oct3475047110
91225054085
10485772872
1122a22a392
12116826688
1379843490
1448730d04
152c9a7a82
hex1cf44e48

485772872 has 16 divisors (see below), whose sum is σ = 980887740. Its totient is φ = 224202816.

The previous prime is 485772869. The next prime is 485772877. The reversal of 485772872 is 278277584.

It can be written as a sum of positive squares in 2 ways, for example, as 447999556 + 37773316 = 21166^2 + 6146^2 .

It is a super-2 number, since 2×4857728722 = 471950566342256768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 485772872.

It is not an unprimeable number, because it can be changed into a prime (485772877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335343 + ... + 2335550.

Almost surely, 2485772872 is an apocalyptic number.

It is an amenable number.

485772872 is an abundant number, since it is smaller than the sum of its proper divisors (495114868).

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

485772872 is a wasteful number, since it uses less digits than its factorization.

485772872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670912 (or 4670908 counting only the distinct ones).

The product of its digits is 1756160, while the sum is 50.

The square root of 485772872 is about 22040.2557153950. The cubic root of 485772872 is about 786.0999210399.

The spelling of 485772872 in words is "four hundred eighty-five million, seven hundred seventy-two thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 4670893 9341786 18683572 37367144 60721609 121443218 242886436 485772872