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660680150 = 252132411907
BaseRepresentation
bin100111011000010…
…010110111010110
31201001012000210012
4213120102313112
52323113231100
6145320400222
722241455124
oct4730226726
91631160705
10660680150
11309a33859
12165316072
13a6b53300
1463a60914
153d007135
hex27612dd6

660680150 has 72 divisors (see below), whose sum is σ = 1363834584. Its totient is φ = 237868800.

The previous prime is 660680123. The next prime is 660680159. The reversal of 660680150 is 51086066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660680159) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 345497 + ... + 347403.

It is an arithmetic number, because the mean of its divisors is an integer number (18942147).

Almost surely, 2660680150 is an apocalyptic number.

660680150 is an abundant number, since it is smaller than the sum of its proper divisors (703154434).

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

660680150 is a wasteful number, since it uses less digits than its factorization.

660680150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 660680150 is about 25703.6991501223. The cubic root of 660680150 is about 870.9577465208.

The spelling of 660680150 in words is "six hundred sixty million, six hundred eighty thousand, one hundred fifty".

Divisors: 1 2 5 10 13 25 26 41 50 65 82 130 169 205 325 338 410 533 650 845 1025 1066 1690 1907 2050 2665 3814 4225 5330 6929 8450 9535 13325 13858 19070 24791 26650 34645 47675 49582 69290 78187 95350 123955 156374 173225 247910 322283 346450 390935 619775 644566 781870 1016431 1239550 1611415 1954675 2032862 3222830 3909350 5082155 8057075 10164310 13213603 16114150 25410775 26427206 50821550 66068015 132136030 330340075 660680150