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42712970895 = 335745198911
BaseRepresentation
bin100111110001111001…
…000011011010001111
311002020201222201221000
4213301321003122033
51144434010032040
631342211111343
73041316155640
oct476171033217
9132221881830
1042712970895
11171293a4251
1283405a2553
13404915ab9a
1420d2a196c7
15119ec80130
hex9f1e4368f

42712970895 has 32 divisors (see below), whose sum is σ = 86781911040. Its totient is φ = 19525929120.

The previous prime is 42712970891. The next prime is 42712970921. The reversal of 42712970895 is 59807921724.

42712970895 is a `hidden beast` number, since 4 + 271 + 297 + 0 + 89 + 5 = 666.

It is not a de Polignac number, because 42712970895 - 22 = 42712970891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42712970891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22598511 + ... + 22600400.

It is an arithmetic number, because the mean of its divisors is an integer number (2711934720).

Almost surely, 242712970895 is an apocalyptic number.

42712970895 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42712970895 is an abundant number, since it is smaller than the sum of its proper divisors (44068940145).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42712970895 is a wasteful number, since it uses less digits than its factorization.

42712970895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45198932 (or 45198926 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 42712970895 in words is "forty-two billion, seven hundred twelve million, nine hundred seventy thousand, eight hundred ninety-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 45198911 135596733 225994555 316392377 406790199 677983665 949177131 1220370597 1581961885 2033950995 2847531393 4745885655 6101852985 8542594179 14237656965 42712970895