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442230808 = 23372149271
BaseRepresentation
bin11010010110111…
…110100000011000
31010211010122121211
4122112332200120
51401202341213
6111514312504
713646620435
oct3226764030
91124118554
10442230808
1120769a608
12104128734
1370809646
1442a38b8c
1528c5653d
hex1a5be818

442230808 has 48 divisors (see below), whose sum is σ = 861084000. Its totient is φ = 212906880.

The previous prime is 442230793. The next prime is 442230827. The reversal of 442230808 is 808032244.

It is a self number, because there is not a number n which added to its sum of digits gives 442230808.

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, 1631713 + ... + 1631983.

It is an arithmetic number, because the mean of its divisors is an integer number (17939250).

Almost surely, 2442230808 is an apocalyptic number.

It is an amenable number.

442230808 is a deficient number, since it is larger than the sum of its proper divisors (418853192).

442230808 is a wasteful number, since it uses less digits than its factorization.

442230808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 442230808 is about 21029.2845337163. The cubic root of 442230808 is about 761.8737284537.

The spelling of 442230808 in words is "four hundred forty-two million, two hundred thirty thousand, eight hundred eight".

Divisors: 1 2 4 8 37 74 148 149 271 296 298 542 596 1084 1192 1369 2168 2738 5476 5513 10027 10952 11026 20054 22052 40108 40379 44104 80216 80758 161516 203981 323032 370999 407962 741998 815924 1483996 1494023 1631848 2967992 2988046 5976092 11952184 55278851 110557702 221115404 442230808