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56994440 = 2358317167
BaseRepresentation
bin1101100101101…
…0101010001000
310222020121200012
43121122222020
5104042310230
65353331052
71261305356
oct331325210
9128217605
1056994440
112a198848
1217106a88
13ba66c29
1477d87d6
15500c395
hex365aa88

56994440 has 32 divisors (see below), whose sum is σ = 129790080. Its totient is φ = 22521792.

The previous prime is 56994439. The next prime is 56994449. The reversal of 56994440 is 4449965.

It is not an unprimeable number, because it can be changed into a prime (56994449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5264 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (4055940).

Almost surely, 256994440 is an apocalyptic number.

It is an amenable number.

56994440 is an abundant number, since it is smaller than the sum of its proper divisors (72795640).

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

56994440 is a wasteful number, since it uses less digits than its factorization.

56994440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17261 (or 17257 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 56994440 is about 7549.4662062956. The cubic root of 56994440 is about 384.8375994657.

The spelling of 56994440 in words is "fifty-six million, nine hundred ninety-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 83 166 332 415 664 830 1660 3320 17167 34334 68668 85835 137336 171670 343340 686680 1424861 2849722 5699444 7124305 11398888 14248610 28497220 56994440