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1490228 = 22379983
BaseRepresentation
bin101101011110100110100
32210201012122
411223310310
5340141403
651535112
715444455
oct5536464
92721178
101490228
119286a3
125ba498
134023bc
142ab12c
151e6838
hex16bd34

1490228 has 12 divisors (see below), whose sum is σ = 2617440. Its totient is φ = 742392.

The previous prime is 1490213. The next prime is 1490233. The reversal of 1490228 is 8220941.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1490197 and 1490206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025 + ... + 2007.

It is an arithmetic number, because the mean of its divisors is an integer number (218120).

21490228 is an apocalyptic number.

It is an amenable number.

1490228 is a deficient number, since it is larger than the sum of its proper divisors (1127212).

1490228 is a wasteful number, since it uses less digits than its factorization.

1490228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1490228 is about 1220.7489504399. The cubic root of 1490228 is about 114.2223014282. Note that the first 3 decimals are identical.

The spelling of 1490228 in words is "one million, four hundred ninety thousand, two hundred twenty-eight".

Divisors: 1 2 4 379 758 983 1516 1966 3932 372557 745114 1490228