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1230455652 = 223798591511
BaseRepresentation
bin100100101010111…
…0100001101100100
310011202022121211120
41021111310031210
510004444040102
6322032533540
742330462156
oct11125641544
93152277746
101230455652
115816185a8
122a40b12b0
13167bc898a
14b95baad6
15730546bc
hex49574364

1230455652 has 48 divisors (see below), whose sum is σ = 2912716800. Its totient is φ = 404220960.

The previous prime is 1230455647. The next prime is 1230455659. The reversal of 1230455652 is 2565540321.

It is a super-2 number, since 2×12304556522 = 3028042223077490208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1230455659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813577 + ... + 815087.

It is an arithmetic number, because the mean of its divisors is an integer number (60681600).

Almost surely, 21230455652 is an apocalyptic number.

1230455652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230455652 is an abundant number, since it is smaller than the sum of its proper divisors (1682261148).

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

1230455652 is a wasteful number, since it uses less digits than its factorization.

1230455652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 1230455652 is about 35077.8513024957. The cubic root of 1230455652 is about 1071.5735580607.

Adding to 1230455652 its reverse (2565540321), we get a palindrome (3795995973).

The spelling of 1230455652 in words is "one billion, two hundred thirty million, four hundred fifty-five thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 79 158 237 316 474 859 948 1511 1718 2577 3022 3436 4533 5154 6044 9066 10308 18132 67861 119369 135722 203583 238738 271444 358107 407166 477476 716214 814332 1297949 1432428 2595898 3893847 5191796 7787694 15575388 102537971 205075942 307613913 410151884 615227826 1230455652