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3281007 = 36117929
BaseRepresentation
bin1100100001000001101111
320011200200210
430201001233
51314443012
6154153503
736613422
oct14410157
96150623
103281007
111941084
121122893
138ab532
146159b9
1544c23c
hex32106f

3281007 has 8 divisors (see below), whose sum is σ = 4446640. Its totient is φ = 2151360.

The previous prime is 3280969. The next prime is 3281011. The reversal of 3281007 is 7001823.

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

It is not a de Polignac number, because 3281007 - 211 = 3278959 is a prime.

It is a Duffinian number.

3281007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3281077) 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, 8782 + ... + 9147.

It is an arithmetic number, because the mean of its divisors is an integer number (555830).

Almost surely, 23281007 is an apocalyptic number.

3281007 is a deficient number, since it is larger than the sum of its proper divisors (1165633).

3281007 is a wasteful number, since it uses less digits than its factorization.

3281007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17993.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 3281007 is about 1811.3550176594. The cubic root of 3281007 is about 148.5943804795.

The spelling of 3281007 in words is "three million, two hundred eighty-one thousand, seven".

Divisors: 1 3 61 183 17929 53787 1093669 3281007