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1230332520 = 233566115511
BaseRepresentation
bin100100101010101…
…0110001001101000
310011202002100221010
41021111112021220
510004431120040
6322030143520
742326440164
oct11125261150
93152070833
101230332520
1158154403a
122a4051ba0
13167b84911
14b9587ca4
157302ce80
hex49556268

1230332520 has 64 divisors (see below), whose sum is σ = 3696819840. Its totient is φ = 327571200.

The previous prime is 1230332503. The next prime is 1230332533. The reversal of 1230332520 is 252330321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71565 + ... + 87075.

It is an arithmetic number, because the mean of its divisors is an integer number (57762810).

Almost surely, 21230332520 is an apocalyptic number.

1230332520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230332520 is an abundant number, since it is smaller than the sum of its proper divisors (2466487320).

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

1230332520 is a wasteful number, since it uses less digits than its factorization.

1230332520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16186 (or 16182 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 1230332520 is about 35076.0961339771. The cubic root of 1230332520 is about 1071.5378126584.

Adding to 1230332520 its reverse (252330321), we get a palindrome (1482662841).

The spelling of 1230332520 in words is "one billion, two hundred thirty million, three hundred thirty-two thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 661 1322 1983 2644 3305 3966 5288 6610 7932 9915 13220 15511 15864 19830 26440 31022 39660 46533 62044 77555 79320 93066 124088 155110 186132 232665 310220 372264 465330 620440 930660 1861320 10252771 20505542 30758313 41011084 51263855 61516626 82022168 102527710 123033252 153791565 205055420 246066504 307583130 410110840 615166260 1230332520