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2115124352385 = 351129343750633
BaseRepresentation
bin11110110001110111001…
…111000101010110000001
321111012111122121220022020
4132301313033011112001
5234123233313234020
64255401423232053
7305545516232262
oct36616717052601
97435448556266
102115124352385
11746023612770
122a1b12a48629
131245bc5abb45
1474530464969
153a044de1c40
hex1ec773c5581

2115124352385 has 32 divisors (see below), whose sum is σ = 3704453682048. Its totient is φ = 1022014763520.

The previous prime is 2115124352377. The next prime is 2115124352449. The reversal of 2115124352385 is 5832534215112.

It is a happy number.

It is not a de Polignac number, because 2115124352385 - 23 = 2115124352377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21826972 + ... + 21923661.

It is an arithmetic number, because the mean of its divisors is an integer number (115764177564).

Almost surely, 22115124352385 is an apocalyptic number.

It is an amenable number.

2115124352385 is a deficient number, since it is larger than the sum of its proper divisors (1589329329663).

2115124352385 is a wasteful number, since it uses less digits than its factorization.

2115124352385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43750945.

The product of its digits is 288000, while the sum is 42.

Adding to 2115124352385 its reverse (5832534215112), we get a palindrome (7947658567497).

The spelling of 2115124352385 in words is "two trillion, one hundred fifteen billion, one hundred twenty-four million, three hundred fifty-two thousand, three hundred eighty-five".

Divisors: 1 3 5 11 15 33 55 165 293 879 1465 3223 4395 9669 16115 48345 43750633 131251899 218753165 481256963 656259495 1443770889 2406284815 7218854445 12818935469 38456806407 64094677345 141008290159 192284032035 423024870477 705041450795 2115124352385