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23378248155 = 351918159947
BaseRepresentation
bin10101110001011100…
…111100000111011011
32020100021022001111210
4111301130330013123
5340334312420110
614423444554203
71455222554613
oct256134740733
966307261453
1023378248155
119a07458949
1246453b2963
132287555b42
1411bac2da43
1591c628520
hex57173c1db

23378248155 has 16 divisors (see below), whose sum is σ = 37601040384. Its totient is φ = 12403117920.

The previous prime is 23378248151. The next prime is 23378248163. The reversal of 23378248155 is 55184287332.

It is not a de Polignac number, because 23378248155 - 22 = 23378248151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23378248151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4077109 + ... + 4082838.

It is an arithmetic number, because the mean of its divisors is an integer number (2350065024).

Almost surely, 223378248155 is an apocalyptic number.

23378248155 is a deficient number, since it is larger than the sum of its proper divisors (14222792229).

23378248155 is a wasteful number, since it uses less digits than its factorization.

23378248155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8160146.

The product of its digits is 1612800, while the sum is 48.

The spelling of 23378248155 in words is "twenty-three billion, three hundred seventy-eight million, two hundred forty-eight thousand, one hundred fifty-five".

Divisors: 1 3 5 15 191 573 955 2865 8159947 24479841 40799735 122399205 1558549877 4675649631 7792749385 23378248155