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488840397 = 3619532803
BaseRepresentation
bin11101001000110…
…001110011001101
31021001211122221220
4131020301303031
52000120343042
6120301313553
715054034443
oct3510616315
91231748856
10488840397
11230a35031
121178658b9
137a378796
1448cccb93
152cdb18ec
hex1d231ccd

488840397 has 16 divisors (see below), whose sum is σ = 663403968. Its totient is φ = 320100480.

The previous prime is 488840393. The next prime is 488840431. The reversal of 488840397 is 793048884.

It is not a de Polignac number, because 488840397 - 22 = 488840393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488840393) 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, 172998 + ... + 175800.

It is an arithmetic number, because the mean of its divisors is an integer number (41462748).

Almost surely, 2488840397 is an apocalyptic number.

It is an amenable number.

488840397 is a deficient number, since it is larger than the sum of its proper divisors (174563571).

488840397 is a wasteful number, since it uses less digits than its factorization.

488840397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 488840397 is about 22109.7353444133. The cubic root of 488840397 is about 787.7511201152.

The spelling of 488840397 in words is "four hundred eighty-eight million, eight hundred forty thousand, three hundred ninety-seven".

Divisors: 1 3 61 183 953 2803 2859 8409 58133 170983 174399 512949 2671259 8013777 162946799 488840397