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3102990 = 235119403
BaseRepresentation
bin1011110101100100001110
312211122111120
423311210032
51243243430
6150301410
735242422
oct13654416
95748446
103102990
11182a360
121057866
138484b7
145aab82
15414610
hex2f590e

3102990 has 32 divisors (see below), whose sum is σ = 8125056. Its totient is φ = 752160.

The previous prime is 3102989. The next prime is 3103013. The reversal of 3102990 is 992013.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3102990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4372 + ... + 5031.

It is an arithmetic number, because the mean of its divisors is an integer number (253908).

Almost surely, 23102990 is an apocalyptic number.

3102990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3102990 is an abundant number, since it is smaller than the sum of its proper divisors (5022066).

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

3102990 is a wasteful number, since it uses less digits than its factorization.

3102990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9424.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 3102990 is about 1761.5305844634. The cubic root of 3102990 is about 145.8568372094.

The spelling of 3102990 in words is "three million, one hundred two thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 9403 18806 28209 47015 56418 94030 103433 141045 206866 282090 310299 517165 620598 1034330 1551495 3102990