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30551612411021 = 1343928621187043
BaseRepresentation
bin1101111001001010110100…
…00000010100110010001101
311000011201001101202121110012
412330211122000110302031
513001024200234123041
6144551114511323005
76302165302462232
oct674453200246215
9130151041677405
1030551612411021
1198099587aa899
123515135220465
13140800a3b98b0
147789c5105789
1537eab6b033eb
hex1bc95a014c8d

30551612411021 has 16 divisors (see below), whose sum is σ = 32978011946880. Its totient is φ = 28136114562240.

The previous prime is 30551612411009. The next prime is 30551612411053. The reversal of 30551612411021 is 12011421615503.

It is a cyclic number.

It is not a de Polignac number, because 30551612411021 - 242 = 26153565899917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30551612411081) 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, 163246526 + ... + 163433568.

It is an arithmetic number, because the mean of its divisors is an integer number (2061125746680).

Almost surely, 230551612411021 is an apocalyptic number.

It is an amenable number.

30551612411021 is a deficient number, since it is larger than the sum of its proper divisors (2426399535859).

30551612411021 is a wasteful number, since it uses less digits than its factorization.

30551612411021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216116.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 30551612411021 in words is "thirty trillion, five hundred fifty-one billion, six hundred twelve million, four hundred eleven thousand, twenty-one".

Divisors: 1 13 439 5707 28621 187043 372073 2431559 12564619 82111877 163340047 1067454401 5353357703 69593650139 2350124031617 30551612411021