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488933749 = 1672927747
BaseRepresentation
bin11101001001001…
…000100101110101
31021002000102000101
4131021020211311
52000131334444
6120303314101
715054603553
oct3511104565
91232012011
10488933749
11230a99187
121178ab931
137a3ac115
1448d14bd3
152cdce3d4
hex1d248975

488933749 has 4 divisors (see below), whose sum is σ = 491861664. Its totient is φ = 486005836.

The previous prime is 488933743. The next prime is 488933759. The reversal of 488933749 is 947339884.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 488933749 - 25 = 488933717 is a prime.

It is a super-2 number, since 2×4889337492 = 478112421822390002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 488933749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488933743) 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, 1463707 + ... + 1464040.

It is an arithmetic number, because the mean of its divisors is an integer number (122965416).

Almost surely, 2488933749 is an apocalyptic number.

It is an amenable number.

488933749 is a deficient number, since it is larger than the sum of its proper divisors (2927915).

488933749 is a wasteful number, since it uses less digits than its factorization.

488933749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927914.

The product of its digits is 5225472, while the sum is 55.

The square root of 488933749 is about 22111.8463498641. The cubic root of 488933749 is about 787.8012615400.

The spelling of 488933749 in words is "four hundred eighty-eight million, nine hundred thirty-three thousand, seven hundred forty-nine".

Divisors: 1 167 2927747 488933749