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30677888243 = 1967711312591
BaseRepresentation
bin11100100100100010…
…110110110011110011
32221011222212012020002
4130210202312303303
51000312014410433
622032045340215
72134140514262
oct344442666363
987158765202
1030677888243
1112012960552
125b41b6766b
132b7b961ac2
1416b04a85d9
15be83ce9e8
hex7248b6cf3

30677888243 has 32 divisors (see below), whose sum is σ = 33502740480. Its totient is φ = 27999972000.

The previous prime is 30677888239. The next prime is 30677888249. The reversal of 30677888243 is 34288877603.

It is a cyclic number.

It is not a de Polignac number, because 30677888243 - 22 = 30677888239 is a prime.

It is a super-2 number, since 2×306778882432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30677888249) 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 31 ways as a sum of consecutive naturals, for example, 11838878 + ... + 11841468.

It is an arithmetic number, because the mean of its divisors is an integer number (1046960640).

Almost surely, 230677888243 is an apocalyptic number.

30677888243 is a deficient number, since it is larger than the sum of its proper divisors (2824852237).

30677888243 is a wasteful number, since it uses less digits than its factorization.

30677888243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 30677888243 in words is "thirty billion, six hundred seventy-seven million, eight hundred eighty-eight thousand, two hundred forty-three".

Divisors: 1 19 67 71 131 1273 1349 2489 2591 4757 8777 9301 49229 90383 166763 173597 176719 183961 339421 623167 3298343 3495259 6448999 11840173 12325387 22741207 24098891 234182353 432082933 457878929 1614625697 30677888243