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3901325749 = 3979827017
BaseRepresentation
bin1110100010001001…
…1000000110110101
3101001220000212211021
43220202120012311
530442214410444
61443042541141
7165451502356
oct35042300665
911056025737
103901325749
111722218862
1290a6677b1
134a2353499
142901c9d2d
1517c783584
hexe88981b5

3901325749 has 4 divisors (see below), whose sum is σ = 3911153164. Its totient is φ = 3891498336.

The previous prime is 3901325723. The next prime is 3901325773. The reversal of 3901325749 is 9475231093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2575055025 + 1326270724 = 50745^2 + 36418^2 .

It is a cyclic number.

It is not a de Polignac number, because 3901325749 - 215 = 3901292981 is a prime.

It is a super-2 number, since 2×39013257492 = 30440685199620822002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3901335749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4913112 + ... + 4913905.

It is an arithmetic number, because the mean of its divisors is an integer number (977788291).

Almost surely, 23901325749 is an apocalyptic number.

It is an amenable number.

3901325749 is a deficient number, since it is larger than the sum of its proper divisors (9827415).

3901325749 is an equidigital number, since it uses as much as digits as its factorization.

3901325749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9827414.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 3901325749 is about 62460.5935690656. The cubic root of 3901325749 is about 1574.2392562272.

The spelling of 3901325749 in words is "three billion, nine hundred one million, three hundred twenty-five thousand, seven hundred forty-nine".

Divisors: 1 397 9827017 3901325749