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319378052 = 22711406359
BaseRepresentation
bin10011000010010…
…101001010000100
3211020222002022202
4103002111022010
51123230044202
651405214032
710625445230
oct2302251204
9736862282
10319378052
1115430a504
128ab61318
13512240c6
14305b95c0
151d08a802
hex13095284

319378052 has 12 divisors (see below), whose sum is σ = 638756160. Its totient is φ = 136876296.

The previous prime is 319378039. The next prime is 319378057. The reversal of 319378052 is 250873913.

319378052 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 319377997 and 319378015.

It is not an unprimeable number, because it can be changed into a prime (319378057) 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, 5703152 + ... + 5703207.

It is an arithmetic number, because the mean of its divisors is an integer number (53229680).

Almost surely, 2319378052 is an apocalyptic number.

It is an amenable number.

319378052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

319378052 is a wasteful number, since it uses less digits than its factorization.

319378052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11406370 (or 11406368 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 319378052 is about 17871.1513898797. The cubic root of 319378052 is about 683.5469595552.

The spelling of 319378052 in words is "three hundred nineteen million, three hundred seventy-eight thousand, fifty-two".

Divisors: 1 2 4 7 14 28 11406359 22812718 45625436 79844513 159689026 319378052