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488768957 = 1134325389
BaseRepresentation
bin11101001000100…
…000010110111101
31021001201000221222
4131020200112331
52000111101312
6120300003125
715053316245
oct3510402675
91231630858
10488768957
11230996396
121178304a5
137a352101
1448cb0b25
152cd9a672
hex1d2205bd

488768957 has 4 divisors (see below), whose sum is σ = 493094460. Its totient is φ = 484443456.

The previous prime is 488768941. The next prime is 488768963. The reversal of 488768957 is 759867884.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222785476 + 265983481 = 14926^2 + 16309^2 .

It is a cyclic number.

It is not a de Polignac number, because 488768957 - 24 = 488768941 is a prime.

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 488768957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488768857) 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, 2162582 + ... + 2162807.

It is an arithmetic number, because the mean of its divisors is an integer number (123273615).

Almost surely, 2488768957 is an apocalyptic number.

It is an amenable number.

488768957 is a deficient number, since it is larger than the sum of its proper divisors (4325503).

488768957 is a wasteful number, since it uses less digits than its factorization.

488768957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325502.

The product of its digits is 27095040, while the sum is 62.

The square root of 488768957 is about 22108.1197074740. The cubic root of 488768957 is about 787.7127437985.

The spelling of 488768957 in words is "four hundred eighty-eight million, seven hundred sixty-eight thousand, nine hundred fifty-seven".

Divisors: 1 113 4325389 488768957