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30705102007 = 1741388111351
BaseRepresentation
bin11100100110001010…
…101010110010110111
32221020220001210111021
4130212022222302313
51000341001231012
622034500522011
72134621026556
oct344612526267
987226053437
1030705102007
1112027258668
125b4b0b0307
132b8449c818
1416b3d4dd9d
15bea9a8007
hex7262aacb7

30705102007 has 16 divisors (see below), whose sum is σ = 33315758784. Its totient is φ = 28184320000.

The previous prime is 30705101993. The next prime is 30705102023. The reversal of 30705102007 is 70020150703.

It is a cyclic number.

It is not a de Polignac number, because 30705102007 - 27 = 30705101879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30705102037) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2699382 + ... + 2710732.

It is an arithmetic number, because the mean of its divisors is an integer number (2082234924).

Almost surely, 230705102007 is an apocalyptic number.

30705102007 is a deficient number, since it is larger than the sum of its proper divisors (2610656777).

30705102007 is a wasteful number, since it uses less digits than its factorization.

30705102007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15290.

The product of its (nonzero) digits is 1470, while the sum is 25.

The spelling of 30705102007 in words is "thirty billion, seven hundred five million, one hundred two thousand, seven".

Divisors: 1 17 41 697 3881 11351 65977 159121 192967 465391 2705057 7911647 44053231 748904927 1806182471 30705102007