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8540472 = 233355853
BaseRepresentation
bin100000100101…
…000100111000
3121001220022210
4200211010320
54141243342
6503015120
7132410223
oct40450470
917056283
108540472
114903646
122a3a4a0
131a00445
1411c45ba
15b3a79c
hex825138

8540472 has 16 divisors (see below), whose sum is σ = 21351240. Its totient is φ = 2846816.

The previous prime is 8540461. The next prime is 8540479. The reversal of 8540472 is 2740458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177903 + ... + 177950.

Almost surely, 28540472 is an apocalyptic number.

It is an amenable number.

8540472 is an abundant number, since it is smaller than the sum of its proper divisors (12810768).

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

8540472 is a wasteful number, since it uses less digits than its factorization.

8540472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355862 (or 355858 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 8540472 is about 2922.4085956621. The cubic root of 8540472 is about 204.4061497097.

The spelling of 8540472 in words is "eight million, five hundred forty thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 355853 711706 1067559 1423412 2135118 2846824 4270236 8540472