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1427214307561 = 74767211306857
BaseRepresentation
bin10100110001001100100…
…110100001000011101001
312001102220000111212012221
4110301030212201003221
5141340413330320221
63011353031434041
7205053462310420
oct24611446410351
95042800455187
101427214307561
115003072a6369
121b072b225921
13a477cb11143
144d112ab62b7
15271d2428541
hex14c4c9a10e9

1427214307561 has 32 divisors (see below), whose sum is σ = 1698687332352. Its totient is φ = 1173834668160.

The previous prime is 1427214307553. The next prime is 1427214307577. The reversal of 1427214307561 is 1657034127241.

It is not a de Polignac number, because 1427214307561 - 23 = 1427214307553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1427214307591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4497645 + ... + 4804501.

It is an arithmetic number, because the mean of its divisors is an integer number (53083979136).

Almost surely, 21427214307561 is an apocalyptic number.

It is an amenable number.

1427214307561 is a deficient number, since it is larger than the sum of its proper divisors (271473024791).

1427214307561 is a wasteful number, since it uses less digits than its factorization.

1427214307561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307189.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 1427214307561 in words is "one trillion, four hundred twenty-seven billion, two hundred fourteen million, three hundred seven thousand, five hundred sixty-one".

Divisors: 1 7 47 67 211 329 469 1477 3149 9917 14137 22043 69419 98959 306857 664439 2147999 4651073 14422279 20559419 64746827 100955953 143915933 453227789 966292693 3043100869 4338037409 6764048851 21301706083 30366261863 203887758223 1427214307561