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30106730671 = 293102753347
BaseRepresentation
bin11100000010100000…
…000100000010101111
32212201012010101022221
4130002200010002233
5443124310340141
621455243420211
72114033662663
oct340240040257
985635111287
1030106730671
111184a5123a6
125a02824667
132aba524344
1416586ac8a3
15bb31acbd1
hex7028040af

30106730671 has 4 divisors (see below), whose sum is σ = 30209484312. Its totient is φ = 30003977032.

The previous prime is 30106730653. The next prime is 30106730701. The reversal of 30106730671 is 17603760103.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30106730671 - 27 = 30106730543 is a prime.

It is a super-2 number, since 2×301067306712 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30106731671) 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, 51376381 + ... + 51376966.

It is an arithmetic number, because the mean of its divisors is an integer number (7552371078).

Almost surely, 230106730671 is an apocalyptic number.

30106730671 is a deficient number, since it is larger than the sum of its proper divisors (102753641).

30106730671 is a wasteful number, since it uses less digits than its factorization.

30106730671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102753640.

The product of its (nonzero) digits is 15876, while the sum is 34.

The spelling of 30106730671 in words is "thirty billion, one hundred six million, seven hundred thirty thousand, six hundred seventy-one".

Divisors: 1 293 102753347 30106730671