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469940673391 = 71731127389719
BaseRepresentation
bin1101101011010101010…
…01011001101101101111
31122220222222021201001121
412311222221121231233
530144414303022031
6555515431321411
745644365546540
oct6655251315557
91586888251047
10469940673391
11171334293512
12770b2220267
13354136b3397
1418a60d744c7
15c356bdb011
hex6d6aa59b6f

469940673391 has 16 divisors (see below), whose sum is σ = 587011829760. Its totient is φ = 366882387840.

The previous prime is 469940673361. The next prime is 469940673463. The reversal of 469940673391 is 193376049964.

It is a cyclic number.

It is not a de Polignac number, because 469940673391 - 25 = 469940673359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469940673311) 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, 63691171 + ... + 63698548.

It is an arithmetic number, because the mean of its divisors is an integer number (36688239360).

Almost surely, 2469940673391 is an apocalyptic number.

469940673391 is a deficient number, since it is larger than the sum of its proper divisors (117071156369).

469940673391 is a wasteful number, since it uses less digits than its factorization.

469940673391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127389774.

The product of its (nonzero) digits is 26453952, while the sum is 61.

The spelling of 469940673391 in words is "four hundred sixty-nine billion, nine hundred forty million, six hundred seventy-three thousand, three hundred ninety-one".

Divisors: 1 7 17 31 119 217 527 3689 127389719 891728033 2165625223 3949081289 15159376561 27643569023 67134381913 469940673391