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30978324743 = 711033742209
BaseRepresentation
bin11100110110011100…
…111011100100000111
32221221221011221121212
4130312130323210013
51001420422342433
622121541002035
72144446262402
oct346634734407
987857157555
1030978324743
1112157502983
1260066b331b
132bc8c83492
1416dc352d39
15c14977d48
hex73673b907

30978324743 has 8 divisors (see below), whose sum is σ = 31418422560. Its totient is φ = 30538332160.

The previous prime is 30978324731. The next prime is 30978324763. The reversal of 30978324743 is 34742387903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30978324743 - 214 = 30978308359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30978324691 and 30978324700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30978324763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712823 + ... + 755031.

It is an arithmetic number, because the mean of its divisors is an integer number (3927302820).

Almost surely, 230978324743 is an apocalyptic number.

30978324743 is a deficient number, since it is larger than the sum of its proper divisors (440097817).

30978324743 is a wasteful number, since it uses less digits than its factorization.

30978324743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52617.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 30978324743 in words is "thirty billion, nine hundred seventy-eight million, three hundred twenty-four thousand, seven hundred forty-three".

Divisors: 1 71 10337 42209 733927 2996839 436314433 30978324743