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30553028057249 = 857197338214729
BaseRepresentation
bin1101111001001101011100…
…11000100101100010100001
311000011211201001112212222222
412330212232120211202201
513001040100140312444
6144551511201440425
76302245342331555
oct674465630454241
9130154631485888
1030553028057249
11980a514905855
12351546b340115
1314081a4785b99
14778abb12b865
1537eb4b038eee
hex1bc9ae6258a1

30553028057249 has 16 divisors (see below), whose sum is σ = 30618665597520. Its totient is φ = 30487478430720.

The previous prime is 30553028057243. The next prime is 30553028057329. The reversal of 30553028057249 is 94275082035503.

It can be written as a sum of positive squares in 8 ways, for example, as 5652784225 + 30547375273024 = 75185^2 + 5526968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30553028057249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30553028057249.

It is not an unprimeable number, because it can be changed into a prime (30553028057243) 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, 6460777517 + ... + 6460782245.

It is an arithmetic number, because the mean of its divisors is an integer number (1913666599845).

Almost surely, 230553028057249 is an apocalyptic number.

It is an amenable number.

30553028057249 is a deficient number, since it is larger than the sum of its proper divisors (65637540271).

30553028057249 is a wasteful number, since it uses less digits than its factorization.

30553028057249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11380.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 30553028057249 in words is "thirty trillion, five hundred fifty-three billion, twenty-eight million, fifty-seven thousand, two hundred forty-nine".

Divisors: 1 857 1973 3821 4729 1690861 3274597 4052753 7538833 9330317 18069509 6460779881 7996081669 15485569213 35651141257 30553028057249