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23451705524 = 2213450994337
BaseRepresentation
bin10101110101110101…
…001010000010110100
32020112101112002002002
4111311311022002310
5341012114034044
614435031234432
71460104131212
oct256565120264
966471462062
1023451705524
119a44970515
124665b18a18
132299835240
1411c68b1cb2
15923cd874e
hex575d4a0b4

23451705524 has 12 divisors (see below), whose sum is σ = 44197445124. Its totient is φ = 10823864064.

The previous prime is 23451705517. The next prime is 23451705559. The reversal of 23451705524 is 42550715432.

It can be written as a sum of positive squares in 2 ways, for example, as 6261873424 + 17189832100 = 79132^2 + 131110^2 .

It is a super-2 number, since 2×234517055242 (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 225497117 + ... + 225497220.

It is an arithmetic number, because the mean of its divisors is an integer number (3683120427).

Almost surely, 223451705524 is an apocalyptic number.

It is an amenable number.

23451705524 is a deficient number, since it is larger than the sum of its proper divisors (20745739600).

23451705524 is a wasteful number, since it uses less digits than its factorization.

23451705524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450994354 (or 450994352 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 38.

The spelling of 23451705524 in words is "twenty-three billion, four hundred fifty-one million, seven hundred five thousand, five hundred twenty-four".

Divisors: 1 2 4 13 26 52 450994337 901988674 1803977348 5862926381 11725852762 23451705524