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1531368801 = 33110351421
BaseRepresentation
bin101101101000110…
…1101010101100001
310221201112121002000
41123101231111201
511114012300201
6411542314213
752643264034
oct13321552541
93851477060
101531368801
11716466056
12368a28969
131b53562b1
1410754b01b
158e693d86
hex5b46d561

1531368801 has 16 divisors (see below), whose sum is σ = 2270795520. Its totient is φ = 1019967120.

The previous prime is 1531368793. The next prime is 1531368833. The reversal of 1531368801 is 1088631351.

It is not a de Polignac number, because 1531368801 - 23 = 1531368793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1531368851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4071 + ... + 55491.

It is an arithmetic number, because the mean of its divisors is an integer number (141924720).

Almost surely, 21531368801 is an apocalyptic number.

It is an amenable number.

1531368801 is a deficient number, since it is larger than the sum of its proper divisors (739426719).

1531368801 is a wasteful number, since it uses less digits than its factorization.

1531368801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52533 (or 52527 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1531368801 is about 39132.7075603005. The cubic root of 1531368801 is about 1152.6388803767.

The spelling of 1531368801 in words is "one billion, five hundred thirty-one million, three hundred sixty-eight thousand, eight hundred one".

Divisors: 1 3 9 27 1103 3309 9927 29781 51421 154263 462789 1388367 56717363 170152089 510456267 1531368801