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248987164 = 22312007961
BaseRepresentation
bin11101101011100…
…11111000011100
3122100111212011211
432311303320130
51002220042124
640412354204
76112233046
oct1665637034
9570455154
10248987164
11118601818
126b475964
133c7796aa
14250d4a96
1516cd3e94
hexed73e1c

248987164 has 12 divisors (see below), whose sum is σ = 449783488. Its totient is φ = 120477600.

The previous prime is 248987149. The next prime is 248987173. The reversal of 248987164 is 461789842.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1003857 + ... + 1004104.

Almost surely, 2248987164 is an apocalyptic number.

It is an amenable number.

248987164 is a deficient number, since it is larger than the sum of its proper divisors (200796324).

248987164 is a wasteful number, since it uses less digits than its factorization.

248987164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007996 (or 2007994 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The square root of 248987164 is about 15779.3271085937. The cubic root of 248987164 is about 629.1086445584.

The spelling of 248987164 in words is "two hundred forty-eight million, nine hundred eighty-seven thousand, one hundred sixty-four".

Divisors: 1 2 4 31 62 124 2007961 4015922 8031844 62246791 124493582 248987164