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23005391445 = 3351031679907
BaseRepresentation
bin10101011011001110…
…100110101001010101
32012101021200222021000
4111123032212221111
5334103340011240
614322445213513
71443044413041
oct253316465125
965337628230
1023005391445
119835a42103
124560561299
13222822917a
1411834d3021
158e9a27430
hex55b3a6a55

23005391445 has 64 divisors (see below), whose sum is σ = 41547018240. Its totient is φ = 12076444224.

The previous prime is 23005391441. The next prime is 23005391467. The reversal of 23005391445 is 54419350032.

It is not a de Polignac number, because 23005391445 - 22 = 23005391441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23005391441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2317182 + ... + 2327088.

It is an arithmetic number, because the mean of its divisors is an integer number (649172160).

Almost surely, 223005391445 is an apocalyptic number.

It is an amenable number.

23005391445 is a deficient number, since it is larger than the sum of its proper divisors (18541626795).

23005391445 is a wasteful number, since it uses less digits than its factorization.

23005391445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10191 (or 10185 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 23005391445 in words is "twenty-three billion, five million, three hundred ninety-one thousand, four hundred forty-five".

Divisors: 1 3 5 9 15 27 45 103 135 167 309 501 515 835 927 1503 1545 2505 2781 4509 4635 7515 9907 13905 17201 22545 29721 49535 51603 86005 89163 148605 154809 258015 267489 445815 464427 774045 1020421 1337445 1654469 2322135 3061263 4963407 5102105 8272345 9183789 14890221 15306315 24817035 27551367 44670663 45918945 74451105 137756835 170410307 223353315 511230921 852051535 1533692763 2556154605 4601078289 7668463815 23005391445