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7864054345 = 572107299983
BaseRepresentation
bin1110101001011101…
…11111001001001001
3202022001121100112001
413110232333021021
5112101144214340
63340201551001
7365610234100
oct72456771111
922261540461
107864054345
113376065474
1216357a5461
139843252c4
145485db037
153105e529a
hex1d4bbf249

7864054345 has 24 divisors (see below), whose sum is σ = 11080209024. Its totient is φ = 5342079456.

The previous prime is 7864054321. The next prime is 7864054397. The reversal of 7864054345 is 5434504687.

It is not a de Polignac number, because 7864054345 - 29 = 7864053833 is a prime.

It is a super-2 number, since 2×78640543452 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7864054295 and 7864054304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123777 + ... + 176206.

It is an arithmetic number, because the mean of its divisors is an integer number (461675376).

Almost surely, 27864054345 is an apocalyptic number.

It is an amenable number.

7864054345 is a deficient number, since it is larger than the sum of its proper divisors (3216154679).

7864054345 is a wasteful number, since it uses less digits than its factorization.

7864054345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300109 (or 300102 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 46.

The square root of 7864054345 is about 88679.5035225164. The cubic root of 7864054345 is about 1988.6064117438.

The spelling of 7864054345 in words is "seven billion, eight hundred sixty-four million, fifty-four thousand, three hundred forty-five".

Divisors: 1 5 7 35 49 107 245 535 749 3745 5243 26215 299983 1499915 2099881 10499405 14699167 32098181 73495835 160490905 224687267 1123436335 1572810869 7864054345