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54212035657 = 1330011389589
BaseRepresentation
bin110010011111010010…
…100000010001001001
312011221010111202022111
4302133102200101021
51342011240120112
640523224022321
73626265462043
oct623722402111
9164833452274
1054212035657
1120a9a30a85a
12a60b6019a1
13515c5a0a10
1428a3cbaa93
1516245505a7
hexc9f4a0449

54212035657 has 8 divisors (see below), whose sum is σ = 58401688520. Its totient is φ = 50025168000.

The previous prime is 54212035643. The next prime is 54212035663. The reversal of 54212035657 is 75653021245.

It can be written as a sum of positive squares in 4 ways, for example, as 1482558016 + 52729477641 = 38504^2 + 229629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54212035657 - 211 = 54212033609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54212035637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655782 + ... + 733807.

It is an arithmetic number, because the mean of its divisors is an integer number (7300211065).

Almost surely, 254212035657 is an apocalyptic number.

It is an amenable number.

54212035657 is a deficient number, since it is larger than the sum of its proper divisors (4189652863).

54212035657 is a wasteful number, since it uses less digits than its factorization.

54212035657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392603.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 54212035657 in words is "fifty-four billion, two hundred twelve million, thirty-five thousand, six hundred fifty-seven".

Divisors: 1 13 3001 39013 1389589 18064657 4170156589 54212035657