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68031551140773 = 3112061562155781
BaseRepresentation
bin11110111011111110101000…
…11100000111001110100101
322220212202022202210221022220
433131333110130013032211
532404112104043001043
6400405132500542553
720221055154300063
oct1735772434071645
9286782282727286
1068031551140773
111a74a0230493a0
127768b789b1a59
132bc6469cc43cc
1412b2a5d437033
157ce9cb8de483
hex3ddfd47073a5

68031551140773 has 8 divisors (see below), whose sum is σ = 98954983477536. Its totient is φ = 41231243115600.

The previous prime is 68031551140759. The next prime is 68031551140789. The reversal of 68031551140773 is 37704115513086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68031551140773 - 28 = 68031551140517 is a prime.

It is a super-2 number, since 2×680315511407732 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68031551140753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030781077858 + ... + 1030781077923.

It is an arithmetic number, because the mean of its divisors is an integer number (12369372934692).

Almost surely, 268031551140773 is an apocalyptic number.

It is an amenable number.

68031551140773 is a deficient number, since it is larger than the sum of its proper divisors (30923432336763).

68031551140773 is a wasteful number, since it uses less digits than its factorization.

68031551140773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061562155795.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 68031551140773 in words is "sixty-eight trillion, thirty-one billion, five hundred fifty-one million, one hundred forty thousand, seven hundred seventy-three".

Divisors: 1 3 11 33 2061562155781 6184686467343 22677183713591 68031551140773