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30212203001031 = 3243179436132447
BaseRepresentation
bin1101101111010010100111…
…01000001011010011000111
310221222020222101002010101200
412313221103220023103013
512424444042432013111
6144131143333553543
76235521361213542
oct667512350132307
9127866871063350
1030212203001031
119698a17a66577
12347b3b17a58b3
1313b1cc998b19c
147663c800d859
15375d4e71c256
hex1b7a53a0b4c7

30212203001031 has 24 divisors (see below), whose sum is σ = 44904196846080. Its totient is φ = 19563156997776.

The previous prime is 30212203001009. The next prime is 30212203001053. The reversal of 30212203001031 is 13010030221203.

30212203001031 is a `hidden beast` number, since 30 + 212 + 20 + 300 + 103 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (30212203001009) and next prime (30212203001053).

It is not a de Polignac number, because 30212203001031 - 221 = 30212200903879 is a prime.

It is a super-2 number, since 2×302122030010312 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30212203000995 and 30212203001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212203001081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217996951 + ... + 218135496.

It is an arithmetic number, because the mean of its divisors is an integer number (1871008201920).

Almost surely, 230212203001031 is an apocalyptic number.

30212203001031 is a deficient number, since it is larger than the sum of its proper divisors (14691993845049).

30212203001031 is a wasteful number, since it uses less digits than its factorization.

30212203001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436132675 (or 436132672 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30212203001031 its reverse (13010030221203), we get a palindrome (43222233222234).

The spelling of 30212203001031 in words is "thirty trillion, two hundred twelve billion, two hundred three million, one thousand, thirty-one".

Divisors: 1 3 9 43 129 179 387 537 1611 7697 23091 69273 436132447 1308397341 3925192023 18753695221 56261085663 78067708013 168783256989 234203124039 702609372117 3356911444559 10070734333677 30212203001031