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6289240 = 235157231
BaseRepresentation
bin10111111111011101011000
3102211112012211
4113333131120
53102223430
6342444504
7104312656
oct27773530
912745184
106289240
113606221
122133734
1313c2859
14b99dd6
1584372a
hex5ff758

6289240 has 16 divisors (see below), whose sum is σ = 14150880. Its totient is φ = 2515680.

The previous prime is 6289237. The next prime is 6289253. The reversal of 6289240 is 429826.

It is an Ulam number.

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, 78576 + ... + 78655.

It is an arithmetic number, because the mean of its divisors is an integer number (884430).

Almost surely, 26289240 is an apocalyptic number.

It is an amenable number.

6289240 is an abundant number, since it is smaller than the sum of its proper divisors (7861640).

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

6289240 is a wasteful number, since it uses less digits than its factorization.

6289240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157242 (or 157238 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 6289240 is about 2507.8357202975. The cubic root of 6289240 is about 184.5862680221.

The spelling of 6289240 in words is "six million, two hundred eighty-nine thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 157231 314462 628924 786155 1257848 1572310 3144620 6289240