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380996518 = 27234128859
BaseRepresentation
bin10110101101011…
…000101110100110
3222112220121222011
4112231120232212
51240013342033
6101450024434
712304263010
oct2655305646
9875817864
10380996518
11186076361
12a771811a
1360c19936
14388591b0
15236acccd
hex16b58ba6

380996518 has 32 divisors (see below), whose sum is σ = 698181120. Its totient is φ = 152370240.

The previous prime is 380996513. The next prime is 380996521. The reversal of 380996518 is 815699083.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380996513) 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, 1228 + ... + 27631.

It is an arithmetic number, because the mean of its divisors is an integer number (21818160).

Almost surely, 2380996518 is an apocalyptic number.

380996518 is a deficient number, since it is larger than the sum of its proper divisors (317184602).

380996518 is a wasteful number, since it uses less digits than its factorization.

380996518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28932.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 380996518 is about 19519.1321016074. The cubic root of 380996518 is about 724.9482439470.

The spelling of 380996518 in words is "three hundred eighty million, nine hundred ninety-six thousand, five hundred eighteen".

Divisors: 1 2 7 14 23 41 46 82 161 287 322 574 943 1886 6601 13202 28859 57718 202013 404026 663757 1183219 1327514 2366438 4646299 8282533 9292598 16565066 27214037 54428074 190498259 380996518