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7688250013957 = 1747103337277213
BaseRepresentation
bin110111111100000111101…
…1010010011100100000101
31000012222201100210020102221
41233320033122103210011
52001431014000421312
624203533331532341
71422313000600522
oct157701732234405
930188640706387
107688250013957
1124a4628778577
12a4204b45a0b1
13439cca6798b6
141c8182c00149
15d4ec7e6e207
hex6fe0f693905

7688250013957 has 32 divisors (see below), whose sum is σ = 8419357320192. Its totient is φ = 6992448712704.

The previous prime is 7688250013937. The next prime is 7688250013973. The reversal of 7688250013957 is 7593100528867.

It is not a de Polignac number, because 7688250013957 - 235 = 7653890275589 is a prime.

It is a super-3 number, since 3×76882500139573 (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7688250013895 and 7688250013904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7688250013907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27595483 + ... + 27872695.

It is an arithmetic number, because the mean of its divisors is an integer number (263104916256).

Almost surely, 27688250013957 is an apocalyptic number.

It is an amenable number.

7688250013957 is a deficient number, since it is larger than the sum of its proper divisors (731107306235).

7688250013957 is a wasteful number, since it uses less digits than its factorization.

7688250013957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277717.

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 7688250013957 in words is "seven trillion, six hundred eighty-eight billion, two hundred fifty million, thirteen thousand, nine hundred fifty-seven".

Divisors: 1 17 47 103 337 799 1751 4841 5729 15839 34711 82297 269263 277213 590087 1631417 4712621 13029011 27734089 28552939 93420781 221493187 485399963 1341988133 1588153277 4390776707 9622340443 22813798261 74643204019 163579787531 452250000821 7688250013957