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1230324240 = 24355126351
BaseRepresentation
bin100100101010101…
…0100001000010000
310011202001221120110
41021111110020100
510004430333430
6322030041320
742326404065
oct11125241020
93152057513
101230324240
115815388a2
122a4049240
13167b80c12
14b9584c6c
157302a7b0
hex49554210

1230324240 has 40 divisors (see below), whose sum is σ = 3814005888. Its totient is φ = 328086400.

The previous prime is 1230324239. The next prime is 1230324317. The reversal of 1230324240 is 424230321.

It is a tau number, because it is divible by the number of its divisors (40).

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, 2562936 + ... + 2563415.

Almost surely, 21230324240 is an apocalyptic number.

1230324240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230324240 is an abundant number, since it is smaller than the sum of its proper divisors (2583681648).

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

1230324240 is a wasteful number, since it uses less digits than its factorization.

1230324240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126367 (or 5126361 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1230324240 is about 35075.9781046801. The cubic root of 1230324240 is about 1071.5354088765.

Adding to 1230324240 its reverse (424230321), we get a palindrome (1654554561).

The spelling of 1230324240 in words is "one billion, two hundred thirty million, three hundred twenty-four thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 5126351 10252702 15379053 20505404 25631755 30758106 41010808 51263510 61516212 76895265 82021616 102527020 123032424 153790530 205054040 246064848 307581060 410108080 615162120 1230324240