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54967997461 = 1337891936653
BaseRepresentation
bin110011001100010110…
…010001010000010101
312020212210222120221211
4303030112101100111
51400033301404321
641130230541421
73654105161236
oct631426212025
9166783876854
1054967997461
1121348002083
12a7a0807871
1352500a4cb0
14293646108d
15166aac90e1
hexccc591415

54967997461 has 32 divisors (see below), whose sum is σ = 61807142880. Its totient is φ = 48553426944.

The previous prime is 54967997453. The next prime is 54967997477. The reversal of 54967997461 is 16479976945.

It can be written as a sum of positive squares in 16 ways, for example, as 37725681361 + 17242316100 = 194231^2 + 131310^2 .

It is a cyclic number.

It is not a de Polignac number, because 54967997461 - 23 = 54967997453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54967997411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8258811 + ... + 8265463.

It is an arithmetic number, because the mean of its divisors is an integer number (1931473215).

Almost surely, 254967997461 is an apocalyptic number.

It is an amenable number.

54967997461 is a deficient number, since it is larger than the sum of its proper divisors (6839145419).

54967997461 is a wasteful number, since it uses less digits than its factorization.

54967997461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985.

The product of its digits is 102876480, while the sum is 67.

The spelling of 54967997461 in words is "fifty-four billion, nine hundred sixty-seven million, nine hundred ninety-seven thousand, four hundred sixty-one".

Divisors: 1 13 37 89 193 481 1157 2509 3293 6653 7141 17177 42809 86489 92833 223301 246161 592117 635549 1284029 3200093 7697521 8262137 16692377 21908329 47509073 114278581 284808277 617617949 1485621553 4228307497 54967997461