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54489698445 = 3571361654413
BaseRepresentation
bin110010101111110101…
…101101000010001101
312012122110222111001110
4302233311231002031
51343043330322240
641010543202233
73636206536410
oct625765550215
9165573874043
1054489698445
1121122017a36
12a6885a6379
1351a4c7a620
1428ccb17b77
15163daeac80
hexcafd6d08d

54489698445 has 64 divisors (see below), whose sum is σ = 109062019584. Its totient is φ = 22616478720.

The previous prime is 54489698437. The next prime is 54489698551.

It is a happy number.

54489698445 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54489698445 - 23 = 54489698437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 243942 + ... + 410471.

It is an arithmetic number, because the mean of its divisors is an integer number (1704094056).

Almost surely, 254489698445 is an apocalyptic number.

It is an amenable number.

54489698445 is an abundant number, since it is smaller than the sum of its proper divisors (54572321139).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54489698445 is a wasteful number, since it uses less digits than its factorization.

54489698445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654502.

The product of its digits is 199065600, while the sum is 66.

The spelling of 54489698445 in words is "fifty-four billion, four hundred eighty-nine million, six hundred ninety-eight thousand, four hundred forty-five".

Divisors: 1 3 5 7 13 15 21 35 39 61 65 91 105 183 195 273 305 427 455 793 915 1281 1365 2135 2379 3965 5551 6405 11895 16653 27755 83265 654413 1963239 3272065 4580891 8507369 9816195 13742673 22904455 25522107 39919193 42536845 59551583 68713365 119757579 127610535 178654749 199595965 279434351 297757915 518949509 598787895 838303053 893273745 1397171755 1556848527 2594747545 3632646563 4191515265 7784242635 10897939689 18163232815 54489698445