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670590080 = 2756189193
BaseRepresentation
bin100111111110000…
…110010010000000
31201201211111122122
4213332012102000
52333132340310
6150313023412
722421631056
oct4776062200
91651744578
10670590080
11314592286
121686b4b68
13a8c12b84
14650c01d6
153dd13555
hex27f86480

670590080 has 128 divisors (see below), whose sum is σ = 1656255600. Its totient is φ = 259522560.

The previous prime is 670590029. The next prime is 670590083. The reversal of 670590080 is 80095076.

It can be written as a sum of positive squares in 8 ways, for example, as 8248384 + 662341696 = 2872^2 + 25736^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 670590080.

It is not an unprimeable number, because it can be changed into a prime (670590083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3474464 + ... + 3474656.

Almost surely, 2670590080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670590080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828127800).

670590080 is an abundant number, since it is smaller than the sum of its proper divisors (985665520).

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

670590080 is a wasteful number, since it uses less digits than its factorization.

670590080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 670590080 is about 25895.7540921287. The cubic root of 670590080 is about 875.2908225127.

The spelling of 670590080 in words is "six hundred seventy million, five hundred ninety thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 61 64 80 89 122 128 160 178 193 244 305 320 356 386 445 488 610 640 712 772 890 965 976 1220 1424 1544 1780 1930 1952 2440 2848 3088 3560 3860 3904 4880 5429 5696 6176 7120 7720 7808 9760 10858 11392 11773 12352 14240 15440 17177 19520 21716 23546 24704 27145 28480 30880 34354 39040 43432 47092 54290 56960 58865 61760 68708 85885 86864 94184 108580 117730 123520 137416 171770 173728 188368 217160 235460 274832 343540 347456 376736 434320 470920 549664 687080 694912 753472 868640 941840 1047797 1099328 1374160 1506944 1737280 1883680 2095594 2198656 2748320 3474560 3767360 4191188 5238985 5496640 7534720 8382376 10477970 10993280 16764752 20955940 33529504 41911880 67059008 83823760 134118016 167647520 335295040 670590080