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23110312142 = 2172192104381
BaseRepresentation
bin10101100001011110…
…110110000011001110
32012122121010111101202
4111201132312003032
5334312214442032
614341114105502
71445460261221
oct254136660316
965577114352
1023110312142
11988a194625
12458b71b292
132243ba3618
1411934055b8
15903d4ed62
hex5617b60ce

23110312142 has 24 divisors (see below), whose sum is σ = 38762716440. Its totient is φ = 10303044480.

The previous prime is 23110312133. The next prime is 23110312153. The reversal of 23110312142 is 24121301132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1041209 + ... + 1063172.

It is an arithmetic number, because the mean of its divisors is an integer number (1615113185).

Almost surely, 223110312142 is an apocalyptic number.

23110312142 is a deficient number, since it is larger than the sum of its proper divisors (15652404298).

23110312142 is a wasteful number, since it uses less digits than its factorization.

23110312142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104436 (or 2104419 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 23110312142 its reverse (24121301132), we get a palindrome (47231613274).

The spelling of 23110312142 in words is "twenty-three billion, one hundred ten million, three hundred twelve thousand, one hundred forty-two".

Divisors: 1 2 17 19 34 38 289 323 578 646 5491 10982 2104381 4208762 35774477 39983239 71548954 79966478 608166109 679715063 1216332218 1359430126 11555156071 23110312142