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30202203010031 = 1310753993402137
BaseRepresentation
bin1101101110111111111111…
…00101001111001111101111
310221221022011110022221121122
412313133333211033033233
512424313102432310111
6144122411151251155
76235015513540043
oct667377745171757
9127838143287548
1030202203010031
1196947562582a8
123479480819abb
1313b1094ca4b50
14765b19c90023
15375966861cdb
hex1b77ff94f3ef

30202203010031 has 16 divisors (see below), whose sum is σ = 32830115228064. Its totient is φ = 27617825432064.

The previous prime is 30202203009973. The next prime is 30202203010043. The reversal of 30202203010031 is 13001030220203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30202203010031 is a prime.

It is a super-2 number, since 2×302022030100312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30202203009991 and 30202203010009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202203030031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74903195 + ... + 75305331.

It is an arithmetic number, because the mean of its divisors is an integer number (2051882201754).

Almost surely, 230202203010031 is an apocalyptic number.

30202203010031 is a deficient number, since it is larger than the sum of its proper divisors (2627912218033).

30202203010031 is a wasteful number, since it uses less digits than its factorization.

30202203010031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456250.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30202203010031 its reverse (13001030220203), we get a palindrome (43203233230234).

The spelling of 30202203010031 in words is "thirty trillion, two hundred two billion, two hundred three million, ten thousand, thirty-one".

Divisors: 1 13 107 1391 53993 402137 701909 5227781 5777251 43028659 75104263 559372567 21712583041 282263579533 2323246385387 30202203010031