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23030010040 = 235575750251
BaseRepresentation
bin10101011100101100…
…100001000010111000
32012110000000201121211
4111130230201002320
5334131140310130
614325125012504
71443463566262
oct253454410270
965400021554
1023030010040
119848927454
124568854134
13223036889b
1411868a0b32
158ebc8ba2a
hex55cb210b8

23030010040 has 16 divisors (see below), whose sum is σ = 51817522680. Its totient is φ = 9212004000.

The previous prime is 23030010013. The next prime is 23030010049. The reversal of 23030010040 is 4001003032.

It is a self number, because there is not a number n which added to its sum of digits gives 23030010040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030010049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287875086 + ... + 287875165.

Almost surely, 223030010040 is an apocalyptic number.

23030010040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23030010040 is an abundant number, since it is smaller than the sum of its proper divisors (28787512640).

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

23030010040 is a wasteful number, since it uses less digits than its factorization.

23030010040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575750262 (or 575750258 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 23030010040 its reverse (4001003032), we get a palindrome (27031013072).

The spelling of 23030010040 in words is "twenty-three billion, thirty million, ten thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 575750251 1151500502 2303001004 2878751255 4606002008 5757502510 11515005020 23030010040