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54198814453 = 722339298837
BaseRepresentation
bin110010011110100000…
…000100011011110101
312011220012122001020021
4302132200010123311
51341444344030303
640522032405141
73626045215210
oct623640043365
9164805561207
1054198814453
1120a928aa543
12a6070a67b1
135159921c14
1428a2238777
1516232dcebd
hexc9e8046f5

54198814453 has 16 divisors (see below), whose sum is σ = 62242145280. Its totient is φ = 46230800256.

The previous prime is 54198814447. The next prime is 54198814459. The reversal of 54198814453 is 35441889145.

It is an interprime number because it is at equal distance from previous prime (54198814447) and next prime (54198814459).

It is a cyclic number.

It is not a de Polignac number, because 54198814453 - 213 = 54198806261 is a prime.

It is a super-2 number, since 2×541988144532 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54198814453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54198814459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6128751 + ... + 6137587.

It is an arithmetic number, because the mean of its divisors is an integer number (3890134080).

Almost surely, 254198814453 is an apocalyptic number.

It is an amenable number.

54198814453 is a deficient number, since it is larger than the sum of its proper divisors (8043330827).

54198814453 is a wasteful number, since it uses less digits than its factorization.

54198814453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12996.

The product of its digits is 2764800, while the sum is 52.

The spelling of 54198814453 in words is "fifty-four billion, one hundred ninety-eight million, eight hundred fourteen thousand, four hundred fifty-three".

Divisors: 1 7 223 1561 3929 8837 27503 61859 876167 1970651 6133169 13794557 34720573 243044011 7742687779 54198814453