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30211302121002 = 2323789415073517
BaseRepresentation
bin1101101111010000111011…
…11011100101111000101010
310221222011122120220200022200
412313220131323211320222
512424440221320333002
6144130514113001030
76235460141651262
oct667503573457052
9127864576820280
1030211302121002
1196985a5493022
12347b19bb53176
1313b1bb5147092
147663405047a2
15375cea5b9b1c
hex1b7a1dee5e2a

30211302121002 has 48 divisors (see below), whose sum is σ = 67234483770792. Its totient is φ = 9797162336640.

The previous prime is 30211302120983. The next prime is 30211302121031. The reversal of 30211302121002 is 20012120311203.

30211302121002 is a `hidden beast` number, since 30 + 211 + 302 + 121 + 0 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 24251498025561 + 5959804095441 = 4924581^2 + 2441271^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3417948 + ... + 8491464.

Almost surely, 230211302121002 is an apocalyptic number.

30211302121002 is an abundant number, since it is smaller than the sum of its proper divisors (37023181649790).

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

30211302121002 is a wasteful number, since it uses less digits than its factorization.

30211302121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082503 (or 5082500 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30211302121002 its reverse (20012120311203), we get a palindrome (50223422432205).

The spelling of 30211302121002 in words is "thirty trillion, two hundred eleven billion, three hundred two million, one hundred twenty-one thousand, two".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 8941 17882 26823 53646 80469 160938 330817 661634 992451 1984902 2977353 5073517 5954706 10147034 15220551 30441102 45661653 91323306 187720129 375440258 563160387 1126320774 1689481161 3378962322 45362315497 90724630994 136086946491 272173892982 408260839473 816521678946 1678405673389 3356811346778 5035217020167 10070434040334 15105651060501 30211302121002