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531988801 = 2275234481
BaseRepresentation
bin11111101101011…
…000000101000001
31101002000211102221
4133231120011001
52042142120201
6124442211041
716116554521
oct3755300501
91332024387
10531988801
11253326073
1212a1b3a81
13862a5396
1450921681
1531a864a1
hex1fb58141

531988801 has 8 divisors (see below), whose sum is σ = 535473504. Its totient is φ = 528514560.

The previous prime is 531988763. The next prime is 531988859. The reversal of 531988801 is 108889135.

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

It is a cyclic number.

It is not a de Polignac number, because 531988801 - 225 = 498434369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531988001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116481 + ... + 120961.

It is an arithmetic number, because the mean of its divisors is an integer number (66934188).

Almost surely, 2531988801 is an apocalyptic number.

It is an amenable number.

531988801 is a deficient number, since it is larger than the sum of its proper divisors (3484703).

531988801 is a wasteful number, since it uses less digits than its factorization.

531988801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231.

The product of its (nonzero) digits is 69120, while the sum is 43.

The square root of 531988801 is about 23064.8824189502. The cubic root of 531988801 is about 810.2782161694.

The spelling of 531988801 in words is "five hundred thirty-one million, nine hundred eighty-eight thousand, eight hundred one".

Divisors: 1 227 523 4481 118721 1017187 2343563 531988801