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331648093 = 71371731999
BaseRepresentation
bin10011110001001…
…000110001011101
3212010001110122201
4103301020301131
51134400214333
652524211501
711134651030
oct2361106135
9763043581
10331648093
11160230137
1293099b91
135392bc9a
1432091017
151e1b117d
hex13c48c5d

331648093 has 16 divisors (see below), whose sum is σ = 384192000. Its totient is φ = 280423296.

The previous prime is 331648081. The next prime is 331648117. The reversal of 331648093 is 390846133.

It is a cyclic number.

It is not a de Polignac number, because 331648093 - 29 = 331647581 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 (331648003) 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, 164908 + ... + 166906.

It is an arithmetic number, because the mean of its divisors is an integer number (24012000).

Almost surely, 2331648093 is an apocalyptic number.

It is an amenable number.

331648093 is a deficient number, since it is larger than the sum of its proper divisors (52543907).

331648093 is a wasteful number, since it uses less digits than its factorization.

331648093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 331648093 is about 18211.2078951397. The cubic root of 331648093 is about 692.1908192457.

The spelling of 331648093 in words is "three hundred thirty-one million, six hundred forty-eight thousand, ninety-three".

Divisors: 1 7 137 173 959 1211 1999 13993 23701 165907 273863 345827 1917041 2420789 47378299 331648093