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53423970 = 2351780799
BaseRepresentation
bin1100101111001…
…0111101100010
310201112012220120
43023302331202
5102134031340
65145021110
71216045005
oct313627542
9121465816
1053423970
112817a246
1215a84796
13b0b6a22
14714953c
154a544d0
hex32f2f62

53423970 has 16 divisors (see below), whose sum is σ = 128217600. Its totient is φ = 14246384.

The previous prime is 53423939. The next prime is 53423971. The reversal of 53423970 is 7932435.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53423971) 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, 890370 + ... + 890429.

It is an arithmetic number, because the mean of its divisors is an integer number (8013600).

Almost surely, 253423970 is an apocalyptic number.

53423970 is an abundant number, since it is smaller than the sum of its proper divisors (74793630).

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

53423970 is a wasteful number, since it uses less digits than its factorization.

53423970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780809.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 53423970 is about 7309.1702675475. The cubic root of 53423970 is about 376.6275217976.

The spelling of 53423970 in words is "fifty-three million, four hundred twenty-three thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 1780799 3561598 5342397 8903995 10684794 17807990 26711985 53423970