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2720741685 = 35181382779
BaseRepresentation
bin1010001000101011…
…0011100100110101
321000121112222221120
42202022303210311
521033002213220
61125550534153
7124264631334
oct24212634465
97017488846
102720741685
111176873552
1263b207359
1334489962c
141bb4b1d1b
1510dcd0a40
hexa22b3935

2720741685 has 8 divisors (see below), whose sum is σ = 4353186720. Its totient is φ = 1451062224.

The previous prime is 2720741671. The next prime is 2720741717. The reversal of 2720741685 is 5861470272.

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

It is not a de Polignac number, because 2720741685 - 24 = 2720741669 is a prime.

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, 90691375 + ... + 90691404.

It is an arithmetic number, because the mean of its divisors is an integer number (544148340).

Almost surely, 22720741685 is an apocalyptic number.

It is an amenable number.

2720741685 is a deficient number, since it is larger than the sum of its proper divisors (1632445035).

2720741685 is a wasteful number, since it uses less digits than its factorization.

2720741685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181382787.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 2720741685 is about 52160.7293373089. The cubic root of 2720741685 is about 1396.0332756509.

The spelling of 2720741685 in words is "two billion, seven hundred twenty million, seven hundred forty-one thousand, six hundred eighty-five".

Divisors: 1 3 5 15 181382779 544148337 906913895 2720741685