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30690052690 = 25112271229077
BaseRepresentation
bin11100100101010001…
…010000101001010010
32221012211202012201011
4130211101100221102
51000323123141230
622033202201134
72134346100163
oct344521205122
987184665634
1030690052690
1112019809910
125b460531aa
132b813308bb
1416b1d5376a
15be94d3e2a
hex725450a52

30690052690 has 32 divisors (see below), whose sum is σ = 60529633344. Its totient is φ = 11110847040.

The previous prime is 30690052643. The next prime is 30690052703. The reversal of 30690052690 is 9625009603.

It is a super-2 number, since 2×306900526902 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589569 + ... + 639508.

It is an arithmetic number, because the mean of its divisors is an integer number (1891551042).

Almost surely, 230690052690 is an apocalyptic number.

30690052690 is a deficient number, since it is larger than the sum of its proper divisors (29839580654).

30690052690 is a wasteful number, since it uses less digits than its factorization.

30690052690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229322.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 30690052690 in words is "thirty billion, six hundred ninety million, fifty-two thousand, six hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 227 454 1135 2270 2497 4994 12485 24970 1229077 2458154 6145385 12290770 13519847 27039694 67599235 135198470 279000479 558000958 1395002395 2790004790 3069005269 6138010538 15345026345 30690052690