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30669744684 = 2235361778157
BaseRepresentation
bin11100100100000011…
…110010101000101100
32221011102112110100210
4130210003302220230
51000302423312214
622031155022420
72134011346155
oct344403625054
987142473323
1030669744684
11120092a9137
125b3b29aa10
132b7a070227
1416ad38892c
15be7821b59
hex7240f2a2c

30669744684 has 48 divisors (see below), whose sum is σ = 73032085728. Its totient is φ = 10013971968.

The previous prime is 30669744683. The next prime is 30669744689. The reversal of 30669744684 is 48644796603.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (30669744683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353334 + ... + 431490.

It is an arithmetic number, because the mean of its divisors is an integer number (1521501786).

Almost surely, 230669744684 is an apocalyptic number.

It is an amenable number.

30669744684 is an abundant number, since it is smaller than the sum of its proper divisors (42362341044).

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

30669744684 is a wasteful number, since it uses less digits than its factorization.

30669744684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78834 (or 78832 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 57.

The spelling of 30669744684 in words is "thirty billion, six hundred sixty-nine million, seven hundred forty-four thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 617 636 1234 1851 2468 3702 7404 32701 65402 78157 98103 130804 156314 196206 234471 312628 392412 468942 937884 4142321 8284642 12426963 16569284 24853926 48222869 49707852 96445738 144668607 192891476 289337214 578674428 2555812057 5111624114 7667436171 10223248228 15334872342 30669744684