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1242485230 = 257123114419
BaseRepresentation
bin100101000001110…
…1101000111101110
310012120221210022111
41022003231013232
510021034011410
6323142434234
742534643630
oct11203550756
93176853274
101242485230
115883945a8
122a813297a
1316a54b27c
14bb02ca50
157412db8a
hex4a0ed1ee

1242485230 has 32 divisors (see below), whose sum is σ = 2558223360. Its totient is φ = 425619360.

The previous prime is 1242485227. The next prime is 1242485249. The reversal of 1242485230 is 325842421.

It is a junction number, because it is equal to n+sod(n) for n = 1242485192 and 1242485201.

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, 78961 + ... + 93379.

It is an arithmetic number, because the mean of its divisors is an integer number (79944480).

Almost surely, 21242485230 is an apocalyptic number.

1242485230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242485230 is an abundant number, since it is smaller than the sum of its proper divisors (1315738130).

1242485230 is a wasteful number, since it uses less digits than its factorization.

1242485230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15664.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 1242485230 is about 35248.9039545913. The cubic root of 1242485230 is about 1075.0543271625.

The spelling of 1242485230 in words is "one billion, two hundred forty-two million, four hundred eighty-five thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1231 2462 6155 8617 12310 14419 17234 28838 43085 72095 86170 100933 144190 201866 504665 1009330 17749789 35499578 88748945 124248523 177497890 248497046 621242615 1242485230