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42782444307 = 3217279623819
BaseRepresentation
bin100111110110000010…
…000100101100010011
311002102120201100112100
4213312002010230103
51200104301204212
631353132131443
73043121530221
oct476602045423
9132376640470
1042782444307
1117164635699
12835b906b83
13405a673b05
1420dbd41b11
1511a5e04bdc
hex9f6084b13

42782444307 has 12 divisors (see below), whose sum is σ = 65431973880. Its totient is φ = 26843886528.

The previous prime is 42782444297. The next prime is 42782444321. The reversal of 42782444307 is 70344428724.

It is not a de Polignac number, because 42782444307 - 28 = 42782444051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42782444347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139811757 + ... + 139812062.

It is an arithmetic number, because the mean of its divisors is an integer number (5452664490).

Almost surely, 242782444307 is an apocalyptic number.

42782444307 is a deficient number, since it is larger than the sum of its proper divisors (22649529573).

42782444307 is a wasteful number, since it uses less digits than its factorization.

42782444307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279623842 (or 279623839 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 45.

The spelling of 42782444307 in words is "forty-two billion, seven hundred eighty-two million, four hundred forty-four thousand, three hundred seven".

Divisors: 1 3 9 17 51 153 279623819 838871457 2516614371 4753604923 14260814769 42782444307