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23023311213220 = 2252116379855269
BaseRepresentation
bin1010011110000100010000…
…10010010101001010100100
310000112000012010220002222021
411033002020102111022210
511004203220132310340
6120544432501512524
74564244054226523
oct517021022251244
9100460163802867
1023023311213220
117377149a6628a
1226ba0a4412744
13cb01204c8716
145984970d44ba
1529dd50db0e4a
hex14f0884952a4

23023311213220 has 48 divisors (see below), whose sum is σ = 48585767630400. Its totient is φ = 9164230830720.

The previous prime is 23023311213211. The next prime is 23023311213251. The reversal of 23023311213220 is 2231211332032.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26491746 + ... + 27347014.

It is an arithmetic number, because the mean of its divisors is an integer number (1012203492300).

Almost surely, 223023311213220 is an apocalyptic number.

23023311213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23023311213220 is an abundant number, since it is smaller than the sum of its proper divisors (25562456417180).

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

23023311213220 is a wasteful number, since it uses less digits than its factorization.

23023311213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861868 (or 861866 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 23023311213220 its reverse (2231211332032), we get a palindrome (25254522545252).

The spelling of 23023311213220 in words is "twenty-three trillion, twenty-three billion, three hundred eleven million, two hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 211 422 844 1055 2110 4220 6379 12758 25516 31895 63790 127580 855269 1345969 1710538 2691938 3421076 4276345 5383876 6729845 8552690 13459690 17105380 26919380 180461759 360923518 721847036 902308795 1804617590 3609235180 5455760951 10911521902 21823043804 27278804755 54557609510 109115219020 1151165560661 2302331121322 4604662242644 5755827803305 11511655606610 23023311213220