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2531643054 = 23421940509
BaseRepresentation
bin1001011011100101…
…1100111010101110
320112102201210101120
42112321130322232
520141100034204
61055113521410
7116510416353
oct22671347256
96472653346
102531643054
11108a056996
125a7a13266
1331465b255
141a032a62a
15ec3cb6d9
hex96e5ceae

2531643054 has 8 divisors (see below), whose sum is σ = 5063286120. Its totient is φ = 843881016.

The previous prime is 2531643053. The next prime is 2531643089. The reversal of 2531643054 is 4503461352.

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

2531643054 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531643053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210970249 + ... + 210970260.

It is an arithmetic number, because the mean of its divisors is an integer number (632910765).

Almost surely, 22531643054 is an apocalyptic number.

2531643054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2531643054 is a wasteful number, since it uses less digits than its factorization.

2531643054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421940514.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 2531643054 is about 50315.4355441747. The cubic root of 2531643054 is about 1362.9109818638.

The spelling of 2531643054 in words is "two billion, five hundred thirty-one million, six hundred forty-three thousand, fifty-four".

Divisors: 1 2 3 6 421940509 843881018 1265821527 2531643054