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807144 = 233132199
BaseRepresentation
bin11000101000011101000
31112000012020
43011003220
5201312034
625144440
76601122
oct3050350
91460166
10807144
11501468
1232b120
13223500
14170212
1510e249
hexc50e8

807144 has 48 divisors (see below), whose sum is σ = 2196000. Its totient is φ = 247104.

The previous prime is 807127. The next prime is 807151. The reversal of 807144 is 441708.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

807144 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3957 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (45750).

2807144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 807144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098000).

807144 is an abundant number, since it is smaller than the sum of its proper divisors (1388856).

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

807144 is a wasteful number, since it uses less digits than its factorization.

807144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 807144 is about 898.4119322449. The cubic root of 807144 is about 93.1072874440.

The spelling of 807144 in words is "eight hundred seven thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 169 199 312 338 398 507 597 676 796 1014 1194 1352 1592 2028 2388 2587 4056 4776 5174 7761 10348 15522 20696 31044 33631 62088 67262 100893 134524 201786 269048 403572 807144