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380198650 = 252133531657
BaseRepresentation
bin10110101010010…
…101111011111010
3222111102002111111
4112222111323322
51234312324100
6101420550534
712264430606
oct2652257372
9874362444
10380198650
11185680967
12a73b244a
13609ca720
14386cc506
15235a16ba
hex16a95efa

380198650 has 48 divisors (see below), whose sum is σ = 764185464. Its totient is φ = 139898880.

The previous prime is 380198603. The next prime is 380198657. The reversal of 380198650 is 56891083.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 2712609 + 377486041 = 1647^2 + 19429^2 .

It is not an unprimeable number, because it can be changed into a prime (380198657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228622 + ... + 230278.

Almost surely, 2380198650 is an apocalyptic number.

380198650 is an abundant number, since it is smaller than the sum of its proper divisors (383986814).

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

380198650 is a wasteful number, since it uses less digits than its factorization.

380198650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 380198650 is about 19498.6832888788. The cubic root of 380198650 is about 724.4418375349.

The spelling of 380198650 in words is "three hundred eighty million, one hundred ninety-eight thousand, six hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 353 650 706 1657 1765 3314 3530 4589 8285 8825 9178 16570 17650 21541 22945 41425 43082 45890 82850 107705 114725 215410 229450 538525 584921 1077050 1169842 2924605 5849210 7603973 14623025 15207946 29246050 38019865 76039730 190099325 380198650