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488621442 = 2319331383
BaseRepresentation
bin11101000111111…
…100010110000010
31021001102112121110
4131013330112002
52000041341232
6120252504150
715052133211
oct3507742602
91231375543
10488621442
112308a5581
1211777b056
137a2ccc1a
1448c73078
152cd6bacc
hex1d1fc582

488621442 has 64 divisors (see below), whose sum is σ = 1067581440. Its totient is φ = 148934160.

The previous prime is 488621437. The next prime is 488621443. The reversal of 488621442 is 244126884.

It is a self number, because there is not a number n which added to its sum of digits gives 488621442.

It is not an unprimeable number, because it can be changed into a prime (488621443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1275583 + ... + 1275965.

It is an arithmetic number, because the mean of its divisors is an integer number (16680960).

Almost surely, 2488621442 is an apocalyptic number.

488621442 is an abundant number, since it is smaller than the sum of its proper divisors (578959998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

488621442 is a wasteful number, since it uses less digits than its factorization.

488621442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 438 counting only the distinct ones).

The product of its digits is 98304, while the sum is 39.

The square root of 488621442 is about 22104.7832380234. The cubic root of 488621442 is about 787.6334894898.

The spelling of 488621442 in words is "four hundred eighty-eight million, six hundred twenty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 19 31 38 57 62 93 114 186 361 383 589 722 766 1083 1149 1178 1767 2166 2298 3534 6859 7277 11191 11873 13718 14554 20577 21831 22382 23746 33573 35619 41154 43662 67146 71238 138263 212629 225587 276526 414789 425258 451174 637887 676761 829578 1275774 1353522 2626997 4286153 5253994 7880991 8572306 12858459 15761982 25716918 81436907 162873814 244310721 488621442