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418145320 = 23510453633
BaseRepresentation
bin11000111011000…
…110010000101000
31002010210222112201
4120323012100220
51324021122240
6105254145544
713235114365
oct3073062050
91063728481
10418145320
111a503984a
12b80522b4
1368825788
143d76946c
1526a99d9a
hex18ec6428

418145320 has 16 divisors (see below), whose sum is σ = 940827060. Its totient is φ = 167258112.

The previous prime is 418145317. The next prime is 418145327. The reversal of 418145320 is 23541814.

It can be written as a sum of positive squares in 2 ways, for example, as 342768196 + 75377124 = 18514^2 + 8682^2 .

It is not an unprimeable number, because it can be changed into a prime (418145327) 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, 5226777 + ... + 5226856.

Almost surely, 2418145320 is an apocalyptic number.

418145320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

418145320 is an abundant number, since it is smaller than the sum of its proper divisors (522681740).

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

418145320 is a wasteful number, since it uses less digits than its factorization.

418145320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10453644 (or 10453640 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 418145320 is about 20448.6019081990. The cubic root of 418145320 is about 747.7832738813.

The spelling of 418145320 in words is "four hundred eighteen million, one hundred forty-five thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 10453633 20907266 41814532 52268165 83629064 104536330 209072660 418145320