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23122153454 = 259988719819
BaseRepresentation
bin10101100010001100…
…000000111111101110
32012200102102002121212
4111202030000333232
5334323232402304
614342215554422
71445663030051
oct254214007756
965612362555
1023122153454
119895942134
12459368ba12
13224648b30a
141194c08a98
15904ddd66e
hex562300fee

23122153454 has 16 divisors (see below), whose sum is σ = 35276428800. Its totient is φ = 11363403384.

The previous prime is 23122153447. The next prime is 23122153463. The reversal of 23122153454 is 45435122132.

It is a self number, because there is not a number n which added to its sum of digits gives 23122153454.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1156757 + ... + 1176575.

It is an arithmetic number, because the mean of its divisors is an integer number (2204776800).

Almost surely, 223122153454 is an apocalyptic number.

23122153454 is a deficient number, since it is larger than the sum of its proper divisors (12154275346).

23122153454 is a wasteful number, since it uses less digits than its factorization.

23122153454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29767.

The product of its digits is 28800, while the sum is 32.

Adding to 23122153454 its reverse (45435122132), we get a palindrome (68557275586).

The spelling of 23122153454 in words is "twenty-three billion, one hundred twenty-two million, one hundred fifty-three thousand, four hundred fifty-four".

Divisors: 1 2 59 118 9887 19774 19819 39638 583333 1166666 1169321 2338642 195950453 391900906 11561076727 23122153454