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30611961413 = 1161367124309
BaseRepresentation
bin11100100000100111…
…010111011001000101
32221000101210202121122
4130200213113121011
51000143130231123
622021332323325
72132410243625
oct344047273105
987011722548
1030611961413
1111a89721770
125b23a73545
132b6b0bb247
1416a5826885
15be270abc8
hex7209d7645

30611961413 has 16 divisors (see below), whose sum is σ = 34035083520. Its totient is φ = 27298036800.

The previous prime is 30611961409. The next prime is 30611961451. The reversal of 30611961413 is 31416911603.

It is not a de Polignac number, because 30611961413 - 22 = 30611961409 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 (30611961403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184103 + ... + 308411.

It is an arithmetic number, because the mean of its divisors is an integer number (2127192720).

Almost surely, 230611961413 is an apocalyptic number.

It is an amenable number.

30611961413 is a deficient number, since it is larger than the sum of its proper divisors (3423122107).

30611961413 is a wasteful number, since it uses less digits than its factorization.

30611961413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124748.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 30611961413 in words is "thirty billion, six hundred eleven million, nine hundred sixty-one thousand, four hundred thirteen".

Divisors: 1 11 61 367 671 4037 22387 124309 246257 1367399 7582849 45621403 83411339 501835433 2782905583 30611961413