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681006275 = 52293753479
BaseRepresentation
bin101000100101110…
…101010011000011
31202110102200222122
4220211311103003
52343314200100
6151324154455
722606313015
oct5045652303
91673380878
10681006275
1131a457104
12170098a2b
13ab11bcc1
14666321b5
153ebbe985
hex289754c3

681006275 has 48 divisors (see below), whose sum is σ = 916012800. Its totient is φ = 501096960.

The previous prime is 681006259. The next prime is 681006299. The reversal of 681006275 is 572600186.

It is not a de Polignac number, because 681006275 - 24 = 681006259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1421486 + ... + 1421964.

It is an arithmetic number, because the mean of its divisors is an integer number (19083600).

Almost surely, 2681006275 is an apocalyptic number.

681006275 is a deficient number, since it is larger than the sum of its proper divisors (235006525).

681006275 is a wasteful number, since it uses less digits than its factorization.

681006275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 681006275 is about 26096.0969303841. The cubic root of 681006275 is about 879.7994872873.

The spelling of 681006275 in words is "six hundred eighty-one million, six thousand, two hundred seventy-five".

Divisors: 1 5 25 29 37 53 145 185 265 479 725 925 1073 1325 1537 1961 2395 5365 7685 9805 11975 13891 17723 25387 26825 38425 49025 56869 69455 88615 126935 284345 347275 443075 513967 634675 736223 939319 1421725 2569835 3681115 4696595 12849175 18405575 23482975 27240251 136201255 681006275