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1230264040 = 23541750161
BaseRepresentation
bin100100101010100…
…0101011011101000
310011201221212222211
41021111011123220
510004421422130
6322024454504
742326033425
oct11125053350
93151855884
101230264040
115814a7645
122a401a434
13167b5c6b5
14b956ad4c
1573017a2a
hex495456e8

1230264040 has 32 divisors (see below), whose sum is σ = 2835612360. Its totient is φ = 480102400.

The previous prime is 1230264031. The next prime is 1230264103. The reversal of 1230264040 is 404620321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1040320516 + 189943524 = 32254^2 + 13782^2 .

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, 373441 + ... + 376720.

Almost surely, 21230264040 is an apocalyptic number.

1230264040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230264040 is an abundant number, since it is smaller than the sum of its proper divisors (1605348320).

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

1230264040 is a wasteful number, since it uses less digits than its factorization.

1230264040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750213 (or 750209 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1230264040 is about 35075.1199570294. The cubic root of 1230264040 is about 1071.5179317807.

Adding to 1230264040 its reverse (404620321), we get a palindrome (1634884361).

The spelling of 1230264040 in words is "one billion, two hundred thirty million, two hundred sixty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 750161 1500322 3000644 3750805 6001288 7501610 15003220 30006440 30756601 61513202 123026404 153783005 246052808 307566010 615132020 1230264040