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23030332540 = 2253731122071
BaseRepresentation
bin10101011100101101…
…101111110001111100
32012110000122010000021
4111130231233301330
5334131231120130
614325135541524
71443466411435
oct253455576174
965400563007
1023030332540
119849027786
12456898a8a4
13223044c607
14118694648c
158ebd0237a
hex55cb6fc7c

23030332540 has 24 divisors (see below), whose sum is σ = 49670826912. Its totient is φ = 8963156160.

The previous prime is 23030332537. The next prime is 23030332541. The reversal of 23030332540 is 4523303032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030332541) 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, 15560296 + ... + 15561775.

It is an arithmetic number, because the mean of its divisors is an integer number (2069617788).

Almost surely, 223030332540 is an apocalyptic number.

23030332540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23030332540 is an abundant number, since it is smaller than the sum of its proper divisors (26640494372).

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

23030332540 is a wasteful number, since it uses less digits than its factorization.

23030332540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31122117 (or 31122115 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 25.

Adding to 23030332540 its reverse (4523303032), we get a palindrome (27553635572).

The spelling of 23030332540 in words is "twenty-three billion, thirty million, three hundred thirty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 31122071 62244142 124488284 155610355 311220710 622441420 1151516627 2303033254 4606066508 5757583135 11515166270 23030332540