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20323111095 = 325764517813
BaseRepresentation
bin10010111011010110…
…100001000010110111
31221110100112000100100
4102323112201002313
5313110204023340
613200350445143
71316424410520
oct227326410267
957410460310
1020323111095
118689959191
123b322037b3
131bbb607c31
14dab193847
157de2e2830
hex4bb5a10b7

20323111095 has 24 divisors (see below), whose sum is σ = 40259115936. Its totient is φ = 9290564928.

The previous prime is 20323111079. The next prime is 20323111141. The reversal of 20323111095 is 59011132302.

It is not a de Polignac number, because 20323111095 - 24 = 20323111079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32258592 + ... + 32259221.

It is an arithmetic number, because the mean of its divisors is an integer number (1677463164).

Almost surely, 220323111095 is an apocalyptic number.

20323111095 is a deficient number, since it is larger than the sum of its proper divisors (19936004841).

20323111095 is a wasteful number, since it uses less digits than its factorization.

20323111095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64517831 (or 64517828 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

Adding to 20323111095 its reverse (59011132302), we get a palindrome (79334243397).

The spelling of 20323111095 in words is "twenty billion, three hundred twenty-three million, one hundred eleven thousand, ninety-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 64517813 193553439 322589065 451624691 580660317 967767195 1354874073 2258123455 2903301585 4064622219 6774370365 20323111095