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488020631 = 7314352301
BaseRepresentation
bin11101000101101…
…001101010010111
31021000022000110012
4131011221222113
51444413130011
6120231550435
715044051450
oct3505515227
91230260405
10488020631
1123052513a
1211752b41b
137a14c607
1448b58127
152cc9da8b
hex1d169a97

488020631 has 16 divisors (see below), whose sum is σ = 589129728. Its totient is φ = 395388000.

The previous prime is 488020627. The next prime is 488020633. The reversal of 488020631 is 136020884.

It is not a de Polignac number, because 488020631 - 22 = 488020627 is a prime.

It is a super-2 number, since 2×4880206312 = 476328272563276322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488020633) 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, 16820 + ... + 35481.

It is an arithmetic number, because the mean of its divisors is an integer number (36820608).

Almost surely, 2488020631 is an apocalyptic number.

488020631 is a deficient number, since it is larger than the sum of its proper divisors (101109097).

488020631 is a wasteful number, since it uses less digits than its factorization.

488020631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52382.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 488020631 is about 22091.1889901834. The cubic root of 488020631 is about 787.3105312555.

The spelling of 488020631 in words is "four hundred eighty-eight million, twenty thousand, six hundred thirty-one".

Divisors: 1 7 31 43 217 301 1333 9331 52301 366107 1621331 2248943 11349317 15742601 69717233 488020631