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3123390 = 235104113
BaseRepresentation
bin1011111010100010111110
312212200111010
423322202332
51244422030
6150540050
735356044
oct13724276
95780433
103123390
111843716
121067626
1385487a
145b4394
1541a6b0
hex2fa8be

3123390 has 16 divisors (see below), whose sum is σ = 7496208. Its totient is φ = 832896.

The previous prime is 3123349. The next prime is 3123403. The reversal of 3123390 is 933213.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52027 + ... + 52086.

It is an arithmetic number, because the mean of its divisors is an integer number (468513).

Almost surely, 23123390 is an apocalyptic number.

3123390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3123390 is an abundant number, since it is smaller than the sum of its proper divisors (4372818).

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

3123390 is a wasteful number, since it uses less digits than its factorization.

3123390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104123.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 3123390 is about 1767.3115175316. The cubic root of 3123390 is about 146.1757750320.

The spelling of 3123390 in words is "three million, one hundred twenty-three thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 104113 208226 312339 520565 624678 1041130 1561695 3123390