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475138842 = 23292730683
BaseRepresentation
bin11100010100100…
…000101100011010
31020010001112221220
4130110200230122
51433113420332
6115051512510
714526420303
oct3424405432
91203045856
10475138842
11224226932
12113158736
137758c159
14471637aa
152baa6d2c
hex1c520b1a

475138842 has 16 divisors (see below), whose sum is σ = 983046240. Its totient is φ = 152918192.

The previous prime is 475138837. The next prime is 475138849. The reversal of 475138842 is 248831574.

It is a junction number, because it is equal to n+sod(n) for n = 475138794 and 475138803.

It is not an unprimeable number, because it can be changed into a prime (475138849) 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, 1365168 + ... + 1365515.

It is an arithmetic number, because the mean of its divisors is an integer number (61440390).

Almost surely, 2475138842 is an apocalyptic number.

475138842 is an abundant number, since it is smaller than the sum of its proper divisors (507907398).

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

475138842 is a wasteful number, since it uses less digits than its factorization.

475138842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730717.

The product of its digits is 215040, while the sum is 42.

The square root of 475138842 is about 21797.6797389080. The cubic root of 475138842 is about 780.3213895821.

The spelling of 475138842 in words is "four hundred seventy-five million, one hundred thirty-eight thousand, eight hundred forty-two".

Divisors: 1 2 3 6 29 58 87 174 2730683 5461366 8192049 16384098 79189807 158379614 237569421 475138842