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34945282387 = 175391992433
BaseRepresentation
bin100000100010111001…
…101011000101010011
310100012101201021111001
4200202321223011103
51033031443014022
624015330402431
72344655666521
oct404271530523
9110171637431
1034945282387
1113902778974
126933130417
1333abaa61b2
141997145311
15d97d72b27
hex822e6b153

34945282387 has 4 divisors (see below), whose sum is σ = 34947292360. Its totient is φ = 34943272416.

The previous prime is 34945282381. The next prime is 34945282451. The reversal of 34945282387 is 78328254943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78328254943 = 102597635077.

It is a cyclic number.

It is not a de Polignac number, because 34945282387 - 223 = 34936893779 is a prime.

It is a super-2 number, since 2×349452823872 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34945282381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978678 + ... + 1013755.

It is an arithmetic number, because the mean of its divisors is an integer number (8736823090).

Almost surely, 234945282387 is an apocalyptic number.

34945282387 is a deficient number, since it is larger than the sum of its proper divisors (2009973).

34945282387 is a wasteful number, since it uses less digits than its factorization.

34945282387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009972.

The product of its digits is 11612160, while the sum is 55.

The spelling of 34945282387 in words is "thirty-four billion, nine hundred forty-five million, two hundred eighty-two thousand, three hundred eighty-seven".

Divisors: 1 17539 1992433 34945282387