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68186085748 = 22113534390039
BaseRepresentation
bin111111100000001101…
…010001100101110100
320112000000011001022021
4333200031101211310
52104121114220443
651154012242524
74632500110624
oct774015214564
9215000131267
1068186085748
1126a102a4490
121126b470444
1365786c5201
14342bb5a884
151b912599ed
hexfe0351974

68186085748 has 24 divisors (see below), whose sum is σ = 130542229440. Its totient is φ = 30905867520.

The previous prime is 68186085739. The next prime is 68186085763. The reversal of 68186085748 is 84758068186.

68186085748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2179488 + ... + 2210551.

It is an arithmetic number, because the mean of its divisors is an integer number (5439259560).

Almost surely, 268186085748 is an apocalyptic number.

It is an amenable number.

68186085748 is a deficient number, since it is larger than the sum of its proper divisors (62356143692).

68186085748 is a wasteful number, since it uses less digits than its factorization.

68186085748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390407 (or 4390405 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 61.

The spelling of 68186085748 in words is "sixty-eight billion, one hundred eighty-six million, eighty-five thousand, seven hundred forty-eight".

Divisors: 1 2 4 11 22 44 353 706 1412 3883 7766 15532 4390039 8780078 17560156 48290429 96580858 193161716 1549683767 3099367534 6198735068 17046521437 34093042874 68186085748