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329380280 = 23510697703
BaseRepresentation
bin10011101000011…
…111000110111000
3211221210020210122
4103220133012320
51133310132110
652403432412
711106454235
oct2350370670
9757706718
10329380280
11159a21309
1292385708
1353316998
1431a6078c
151ddb4255
hex13a1f1b8

329380280 has 32 divisors (see below), whose sum is σ = 741895200. Its totient is φ = 131611776.

The previous prime is 329380211. The next prime is 329380283. The reversal of 329380280 is 82083923.

It is a self number, because there is not a number n which added to its sum of digits gives 329380280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329380283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38909 + ... + 46611.

It is an arithmetic number, because the mean of its divisors is an integer number (23184225).

Almost surely, 2329380280 is an apocalyptic number.

It is an amenable number.

329380280 is an abundant number, since it is smaller than the sum of its proper divisors (412514920).

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

329380280 is a wasteful number, since it uses less digits than its factorization.

329380280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8783 (or 8779 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 329380280 is about 18148.8368773318. The cubic root of 329380280 is about 690.6094733991.

The spelling of 329380280 in words is "three hundred twenty-nine million, three hundred eighty thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1069 2138 4276 5345 7703 8552 10690 15406 21380 30812 38515 42760 61624 77030 154060 308120 8234507 16469014 32938028 41172535 65876056 82345070 164690140 329380280