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3102090 = 235531951
BaseRepresentation
bin1011110101010110001010
312211121021020
423311112022
51243231330
6150253310
735236665
oct13652612
95747236
103102090
111829712
121057236
13847c74
145aa6dc
15414210
hex2f558a

3102090 has 32 divisors (see below), whose sum is σ = 7589376. Its totient is φ = 811200.

The previous prime is 3102067. The next prime is 3102097. The reversal of 3102090 is 902013.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (3102097) 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, 615 + ... + 2565.

It is an arithmetic number, because the mean of its divisors is an integer number (237168).

Almost surely, 23102090 is an apocalyptic number.

3102090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3102090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3794688).

3102090 is an abundant number, since it is smaller than the sum of its proper divisors (4487286).

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

3102090 is a wasteful number, since it uses less digits than its factorization.

3102090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 3102090 is about 1761.2751062795. The cubic root of 3102090 is about 145.8427342693.

The spelling of 3102090 in words is "three million, one hundred two thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 530 795 1590 1951 3902 5853 9755 11706 19510 29265 58530 103403 206806 310209 517015 620418 1034030 1551045 3102090