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2691030 = 235271331
BaseRepresentation
bin1010010000111111010110
312001201101210
422100333112
51142103110
6133402250
731605366
oct12207726
95051353
102691030
1115788a1
12a99386
13732b34
145009a6
15382520
hex290fd6

2691030 has 32 divisors (see below), whose sum is σ = 6501888. Its totient is φ = 712800.

The previous prime is 2691019. The next prime is 2691037. The reversal of 2691030 is 301962.

It is a junction number, because it is equal to n+sod(n) for n = 2690988 and 2691006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691037) 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, 7965 + ... + 8295.

It is an arithmetic number, because the mean of its divisors is an integer number (203184).

22691030 is an apocalyptic number.

2691030 is an abundant number, since it is smaller than the sum of its proper divisors (3810858).

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

2691030 is a wasteful number, since it uses less digits than its factorization.

2691030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 2691030 is about 1640.4359176755. The cubic root of 2691030 is about 139.0932900303.

Adding to 2691030 its reverse (301962), we get a palindrome (2992992).

The spelling of 2691030 in words is "two million, six hundred ninety-one thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 271 331 542 662 813 993 1355 1626 1655 1986 2710 3310 4065 4965 8130 9930 89701 179402 269103 448505 538206 897010 1345515 2691030