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1325031377 = 8993715889
BaseRepresentation
bin100111011111010…
…0101111111010001
310102100021120100012
41032332211333101
510203202001002
6335252004305
744556403145
oct11676457721
93370246305
101325031377
1161aa4475a
1230b900695
13181690547
14c7d99225
157b4d6d52
hex4efa5fd1

1325031377 has 8 divisors (see below), whose sum is σ = 1341433800. Its totient is φ = 1308662784.

The previous prime is 1325031347. The next prime is 1325031427. The reversal of 1325031377 is 7731305231.

It can be written as a sum of positive squares in 4 ways, for example, as 51897616 + 1273133761 = 7204^2 + 35681^2 .

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 1325031377 - 28 = 1325031121 is a prime.

It is a super-2 number, since 2×13250313772 = 3511416300069032258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325031307) 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, 75449 + ... + 91337.

It is an arithmetic number, because the mean of its divisors is an integer number (167679225).

Almost surely, 21325031377 is an apocalyptic number.

It is an amenable number.

1325031377 is a deficient number, since it is larger than the sum of its proper divisors (16402423).

1325031377 is an equidigital number, since it uses as much as digits as its factorization.

1325031377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16915.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 1325031377 is about 36400.9804400925. The cubic root of 1325031377 is about 1098.3532873219.

The spelling of 1325031377 in words is "one billion, three hundred twenty-five million, thirty-one thousand, three hundred seventy-seven".

Divisors: 1 89 937 15889 83393 1414121 14887993 1325031377