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2638893 = 31759877
BaseRepresentation
bin1010000100010000101101
311222001212210
422010100231
51133421033
6132321033
731300365
oct12042055
94861783
102638893
111542704
12a73179
1371519a
144c99a5
15371d63
hex28442d

2638893 has 16 divisors (see below), whose sum is σ = 3792960. Its totient is φ = 1625856.

The previous prime is 2638879. The next prime is 2638897. The reversal of 2638893 is 3988362.

It is not a de Polignac number, because 2638893 - 29 = 2638381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638897) 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, 2571 + ... + 3447.

It is an arithmetic number, because the mean of its divisors is an integer number (237060).

22638893 is an apocalyptic number.

It is an amenable number.

2638893 is a deficient number, since it is larger than the sum of its proper divisors (1154067).

2638893 is a wasteful number, since it uses less digits than its factorization.

2638893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its digits is 62208, while the sum is 39.

The square root of 2638893 is about 1624.4669895076. The cubic root of 2638893 is about 138.1891441255.

The spelling of 2638893 in words is "two million, six hundred thirty-eight thousand, eight hundred ninety-three".

Divisors: 1 3 17 51 59 177 877 1003 2631 3009 14909 44727 51743 155229 879631 2638893