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320489029 = 7353312959
BaseRepresentation
bin10011000110100…
…100011001000101
3211100001112022001
4103012210121011
51124021122104
651445105301
710641053230
oct2306443105
9740045261
10320489029
111549a9173
128b3b8231
13515229a3
14307c8417
151d209aa4
hex131a4645

320489029 has 8 divisors (see below), whose sum is σ = 366405120. Its totient is φ = 274605936.

The previous prime is 320489027. The next prime is 320489041. The reversal of 320489029 is 920984023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320489029 - 21 = 320489027 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320489027) 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, 18252 + ... + 31210.

It is an arithmetic number, because the mean of its divisors is an integer number (45800640).

Almost surely, 2320489029 is an apocalyptic number.

It is an amenable number.

320489029 is a deficient number, since it is larger than the sum of its proper divisors (45916091).

320489029 is a wasteful number, since it uses less digits than its factorization.

320489029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16499.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 320489029 is about 17902.2073778627. The cubic root of 320489029 is about 684.3386295914.

The spelling of 320489029 in words is "three hundred twenty million, four hundred eighty-nine thousand, twenty-nine".

Divisors: 1 7 3533 12959 24731 90713 45784147 320489029