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23001255040 = 27537279643
BaseRepresentation
bin10101011010111110…
…110100110010000000
32012100222220211011211
4111122332310302000
5334101310130130
614322220415504
71442664304411
oct253276646200
965328824154
1023001255040
119833677395
12455b0a7594
13222740b4aa
141182b37808
158e94aba2a
hex55afb4c80

23001255040 has 64 divisors (see below), whose sum is σ = 55007832960. Its totient is φ = 9197079552.

The previous prime is 23001255023. The next prime is 23001255047. The reversal of 23001255040 is 4055210032.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (23001255047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380459 + ... + 2390101.

It is an arithmetic number, because the mean of its divisors is an integer number (859497390).

Almost surely, 223001255040 is an apocalyptic number.

23001255040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23001255040 is an abundant number, since it is smaller than the sum of its proper divisors (32006577920).

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

23001255040 is an equidigital number, since it uses as much as digits as its factorization.

23001255040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13389 (or 13377 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 23001255040 its reverse (4055210032), we get a palindrome (27056465072).

The spelling of 23001255040 in words is "twenty-three billion, one million, two hundred fifty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 3727 7454 9643 14908 18635 19286 29816 37270 38572 48215 59632 74540 77144 96430 119264 149080 154288 192860 238528 298160 308576 385720 477056 596320 617152 771440 1192640 1234304 1542880 2385280 3085760 6171520 35939461 71878922 143757844 179697305 287515688 359394610 575031376 718789220 1150062752 1437578440 2300125504 2875156880 4600251008 5750313760 11500627520 23001255040