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4057287 = 313104033
BaseRepresentation
bin1111011110100011000111
321122010112220
433132203013
52014313122
6222543423
746325553
oct17364307
97563486
104057287
112321333
121437b73
13ac0980
14778863
1555225c
hex3de8c7

4057287 has 8 divisors (see below), whose sum is σ = 5825904. Its totient is φ = 2496768.

The previous prime is 4057247. The next prime is 4057297. The reversal of 4057287 is 7827504.

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

It is not a de Polignac number, because 4057287 - 27 = 4057159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4057217) 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, 51978 + ... + 52055.

It is an arithmetic number, because the mean of its divisors is an integer number (728238).

Almost surely, 24057287 is an apocalyptic number.

4057287 is a deficient number, since it is larger than the sum of its proper divisors (1768617).

4057287 is a wasteful number, since it uses less digits than its factorization.

4057287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104049.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 4057287 is about 2014.2708358113. The cubic root of 4057287 is about 159.4943280118.

It can be divided in two parts, 405 and 7287, that multiplied together give a triangular number (2951235 = T2429).

The spelling of 4057287 in words is "four million, fifty-seven thousand, two hundred eighty-seven".

Divisors: 1 3 13 39 104033 312099 1352429 4057287