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23520051020 = 22511489102359
BaseRepresentation
bin10101111001111001…
…110111111101001100
32020201011010101110202
4111321321313331030
5341132113113040
614445512153032
71461564064214
oct257171677514
966634111422
1023520051020
119a7a5014a4
124684998778
1322aaa4496b
1411d19c3244
15929cd9015
hex579e77f4c

23520051020 has 24 divisors (see below), whose sum is σ = 49396888800. Its totient is φ = 9407109632.

The previous prime is 23520051019. The next prime is 23520051031. The reversal of 23520051020 is 2015002532.

It is a super-3 number, since 3×235200510203 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23520050983 and 23520051001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178601 + ... + 280959.

It is an arithmetic number, because the mean of its divisors is an integer number (2058203700).

Almost surely, 223520051020 is an apocalyptic number.

23520051020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23520051020 is an abundant number, since it is smaller than the sum of its proper divisors (25876837780).

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

23520051020 is a wasteful number, since it uses less digits than its factorization.

23520051020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113857 (or 113855 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 23520051020 its reverse (2015002532), we get a palindrome (25535053552).

The spelling of 23520051020 in words is "twenty-three billion, five hundred twenty million, fifty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 11489 22978 45956 57445 102359 114890 204718 229780 409436 511795 1023590 2047180 1176002551 2352005102 4704010204 5880012755 11760025510 23520051020