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23151305102553 = 34285818581513
BaseRepresentation
bin1010100001110010101010…
…10100010001010011011001
310000222020120020222101010000
411100321111110101103121
511013302333101240203
6121123321315043213
74606424631311655
oct520712524212331
9100866506871100
1023151305102553
1174164601a4811
12271aa652a0509
13cbc20a896704
145a0759d93a65
152a2342a564a3
hex150e555114d9

23151305102553 has 10 divisors (see below), whose sum is σ = 34584048363194. Its totient is φ = 15434203401648.

The previous prime is 23151305102543. The next prime is 23151305102573. The reversal of 23151305102553 is 35520150315132.

23151305102553 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 130 + 510 + 2 + 5 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18862230966489 + 4289074136064 = 4343067^2 + 2071008^2 .

It is not a de Polignac number, because 23151305102553 - 212 = 23151305098457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23151305102533) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 142909290676 + ... + 142909290837.

Almost surely, 223151305102553 is an apocalyptic number.

It is an amenable number.

23151305102553 is a deficient number, since it is larger than the sum of its proper divisors (11432743260641).

23151305102553 is an equidigital number, since it uses as much as digits as its factorization.

23151305102553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285818581525 (or 285818581516 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

Adding to 23151305102553 its reverse (35520150315132), we get a palindrome (58671455417685).

The spelling of 23151305102553 in words is "twenty-three trillion, one hundred fifty-one billion, three hundred five million, one hundred two thousand, five hundred fifty-three".

Divisors: 1 3 9 27 81 285818581513 857455744539 2572367233617 7717101700851 23151305102553