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3000438 = 232723813
BaseRepresentation
bin1011011100100001110110
312122102211100
423130201312
51232003223
6144150530
734334430
oct13344166
95572740
103000438
11176a301
121008446
1381090c
14581650
153e4043
hex2dc876

3000438 has 24 divisors (see below), whose sum is σ = 7429968. Its totient is φ = 857232.

The previous prime is 3000409. The next prime is 3000463. The reversal of 3000438 is 8340003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 3000438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11781 + ... + 12032.

It is an arithmetic number, because the mean of its divisors is an integer number (309582).

Almost surely, 23000438 is an apocalyptic number.

3000438 is an abundant number, since it is smaller than the sum of its proper divisors (4429530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3000438 is a wasteful number, since it uses less digits than its factorization.

3000438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23828 (or 23825 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3000438 is about 1732.1772426631. The cubic root of 3000438 is about 144.2319756371.

The spelling of 3000438 in words is "three million, four hundred thirty-eight", and thus it is an aban number.

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 23813 47626 71439 142878 166691 214317 333382 428634 500073 1000146 1500219 3000438