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55143106443 = 327375183077
BaseRepresentation
bin110011010110110010…
…010000011110001011
312021100000111001022200
4303112302100132023
51400413113401233
641155444051243
73661332446115
oct632662203613
9167300431280
1055143106443
1121427934047
12a82b393b23
13527a455889
1429518043b5
15167b168313
hexcd6c9078b

55143106443 has 12 divisors (see below), whose sum is σ = 79653192528. Its totient is φ = 36761130000.

The previous prime is 55143106429. The next prime is 55143106471. The reversal of 55143106443 is 34460134155.

55143106443 is a `hidden beast` number, since 5 + 5 + 1 + 4 + 3 + 1 + 0 + 644 + 3 = 666.

55143106443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55143106443 - 216 = 55143040907 is a prime.

It is a super-2 number, since 2×551431064432 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55143106398 and 55143106407.

It is not an unprimeable number, because it can be changed into a prime (55143106423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622221 + ... + 705297.

It is an arithmetic number, because the mean of its divisors is an integer number (6637766044).

Almost surely, 255143106443 is an apocalyptic number.

55143106443 is a deficient number, since it is larger than the sum of its proper divisors (24510086085).

55143106443 is a wasteful number, since it uses less digits than its factorization.

55143106443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156834 (or 156831 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 55143106443 in words is "fifty-five billion, one hundred forty-three million, one hundred six thousand, four hundred forty-three".

Divisors: 1 3 9 73751 83077 221253 249231 663759 747693 6127011827 18381035481 55143106443