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105245770252 = 2278681432989
BaseRepresentation
bin110001000000100100…
…0110000001000001100
3101001122202111002012211
41202001020300020030
53211020404122002
6120203234040204
710414042200220
oct1420110601014
9331582432184
10105245770252
11406a8547a17
1218492719064
139c0355c6cc
145145a1a780
152b0ea3bdd7
hex188123020c

105245770252 has 24 divisors (see below), whose sum is σ = 210516274080. Its totient is φ = 45100030080.

The previous prime is 105245770247. The next prime is 105245770327. The reversal of 105245770252 is 252077542501.

It is a super-2 number, since 2×1052457702522 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26574 + ... + 459562.

It is an arithmetic number, because the mean of its divisors is an integer number (8771511420).

Almost surely, 2105245770252 is an apocalyptic number.

It is an amenable number.

105245770252 is an abundant number, since it is smaller than the sum of its proper divisors (105270503828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105245770252 is a wasteful number, since it uses less digits than its factorization.

105245770252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441681 (or 441679 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 105245770252 in words is "one hundred five billion, two hundred forty-five million, seven hundred seventy thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 8681 17362 34724 60767 121534 243068 432989 865978 1731956 3030923 6061846 12123692 3758777509 7517555018 15035110036 26311442563 52622885126 105245770252