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1232103140 = 225148141597
BaseRepresentation
bin100100101110000…
…0110011011100100
310011212102022202122
41021130012123210
510010404300030
6322132125112
742350463302
oct11134063344
93155368678
101232103140
11582543364
122a4766798
13168354818
14b98c9272
157327c8e5
hex497066e4

1232103140 has 24 divisors (see below), whose sum is σ = 2589225912. Its totient is φ = 492496640.

The previous prime is 1232103139. The next prime is 1232103143. The reversal of 1232103140 is 413012321.

It can be written as a sum of positive squares in 4 ways, for example, as 48330304 + 1183772836 = 6952^2 + 34406^2 .

It is not an unprimeable number, because it can be changed into a prime (1232103143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8822 + ... + 50418.

It is an arithmetic number, because the mean of its divisors is an integer number (107884413).

Almost surely, 21232103140 is an apocalyptic number.

1232103140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232103140 is an abundant number, since it is smaller than the sum of its proper divisors (1357122772).

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

1232103140 is a wasteful number, since it uses less digits than its factorization.

1232103140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43087 (or 43085 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1232103140 is about 35101.3267555516. The cubic root of 1232103140 is about 1072.0515970283.

Adding to 1232103140 its reverse (413012321), we get a palindrome (1645115461).

The spelling of 1232103140 in words is "one billion, two hundred thirty-two million, one hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1481 2962 5924 7405 14810 29620 41597 83194 166388 207985 415970 831940 61605157 123210314 246420628 308025785 616051570 1232103140