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478143044 = 222316731121
BaseRepresentation
bin11100011111111…
…110001001000100
31020022201011221122
4130133332021010
51434401034134
6115240133112
714564102021
oct3437761104
91208634848
10478143044
11225998a45
12114167198
13780a16a2
1447706548
152be9c02e
hex1c7fe244

478143044 has 24 divisors (see below), whose sum is σ = 878387328. Its totient is φ = 227300480.

The previous prime is 478143023. The next prime is 478143047. The reversal of 478143044 is 440341874.

It is a junction number, because it is equal to n+sod(n) for n = 478142995 and 478143013.

It is not an unprimeable number, because it can be changed into a prime (478143047) 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, 197 + ... + 30924.

It is an arithmetic number, because the mean of its divisors is an integer number (36599472).

Almost surely, 2478143044 is an apocalyptic number.

It is an amenable number.

478143044 is a deficient number, since it is larger than the sum of its proper divisors (400244284).

478143044 is a wasteful number, since it uses less digits than its factorization.

478143044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31315 (or 31313 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 478143044 is about 21866.4822045065. The cubic root of 478143044 is about 781.9625376969.

The spelling of 478143044 in words is "four hundred seventy-eight million, one hundred forty-three thousand, forty-four".

Divisors: 1 2 4 23 46 92 167 334 668 3841 7682 15364 31121 62242 124484 715783 1431566 2863132 5197207 10394414 20788828 119535761 239071522 478143044