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1138088 = 23720323
BaseRepresentation
bin100010101110110101000
32010211011102
410111312220
5242404323
640220532
712450020
oct4256650
92124142
101138088
11708076
1246a748
1330b033
14218a80
15177328
hex115da8

1138088 has 16 divisors (see below), whose sum is σ = 2438880. Its totient is φ = 487728.

The previous prime is 1138061. The next prime is 1138091. The reversal of 1138088 is 8808311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138088.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10106 + ... + 10217.

It is an arithmetic number, because the mean of its divisors is an integer number (152430).

21138088 is an apocalyptic number.

It is an amenable number.

1138088 is an abundant number, since it is smaller than the sum of its proper divisors (1300792).

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

1138088 is a wasteful number, since it uses less digits than its factorization.

1138088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20336 (or 20332 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1138088 is about 1066.8120734225. The cubic root of 1138088 is about 104.4059576857.

The spelling of 1138088 in words is "one million, one hundred thirty-eight thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 20323 40646 81292 142261 162584 284522 569044 1138088