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3901465 = 53721089
BaseRepresentation
bin1110111000100000011001
321100012210201
432320200121
51444321330
6215342201
745106351
oct16704031
97305721
103901465
112225257
121381961
13a67a79
14737b61
15520eca
hex3b8819

3901465 has 8 divisors (see below), whose sum is σ = 4808520. Its totient is φ = 3036672.

The previous prime is 3901463. The next prime is 3901481. The reversal of 3901465 is 5641093.

It can be written as a sum of positive squares in 4 ways, for example, as 2343961 + 1557504 = 1531^2 + 1248^2 .

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 3901465 - 21 = 3901463 is a prime.

3901465 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3901463) 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, 10360 + ... + 10729.

It is an arithmetic number, because the mean of its divisors is an integer number (601065).

Almost surely, 23901465 is an apocalyptic number.

It is an amenable number.

3901465 is a deficient number, since it is larger than the sum of its proper divisors (907055).

3901465 is a wasteful number, since it uses less digits than its factorization.

3901465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21131.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3901465 is about 1975.2126467801. The cubic root of 3901465 is about 157.4257985910.

The spelling of 3901465 in words is "three million, nine hundred one thousand, four hundred sixty-five".

Divisors: 1 5 37 185 21089 105445 780293 3901465