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491082879241 = 4171191883241
BaseRepresentation
bin1110010010101101101…
…00100001000100001001
31201221120102002001011201
413021112310201010021
531021214204113431
61013333402224201
750323330412623
oct7112664410411
91657512061151
10491082879241
1117a2a3534709
127b2127b5061
13374028c8566
1419aa8c23c13
15cb92d78461
hex7256d21109

491082879241 has 16 divisors (see below), whose sum is σ = 512817371136. Its totient is φ = 469883680000.

The previous prime is 491082879227. The next prime is 491082879269. The reversal of 491082879241 is 142978280194.

It is not a de Polignac number, because 491082879241 - 213 = 491082871049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491082879211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114381 + ... + 997621.

It is an arithmetic number, because the mean of its divisors is an integer number (32051085696).

Almost surely, 2491082879241 is an apocalyptic number.

491082879241 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

491082879241 is a deficient number, since it is larger than the sum of its proper divisors (21734491895).

491082879241 is a wasteful number, since it uses less digits than its factorization.

491082879241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883544.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 491082879241 in words is "four hundred ninety-one billion, eighty-two million, eight hundred seventy-nine thousand, two hundred forty-one".

Divisors: 1 41 71 191 2911 7831 13561 556001 883241 36212881 62710111 168699031 2571114551 6916660271 11977631201 491082879241