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52420943 = 193477951
BaseRepresentation
bin1100011111111…
…0000101001111
310122122021000102
43013332011033
5101404432233
65111321315
71204366511
oct307760517
9118567012
1052420943
11276546a3
121568023b
13ab25313
146d67bb1
1549071e8
hex31fe14f

52420943 has 8 divisors (see below), whose sum is σ = 55345920. Its totient is φ = 49512600.

The previous prime is 52420909. The next prime is 52420957. The reversal of 52420943 is 34902425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52420943 - 210 = 52419919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52426943) 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, 2618 + ... + 10568.

It is an arithmetic number, because the mean of its divisors is an integer number (6918240).

Almost surely, 252420943 is an apocalyptic number.

52420943 is a deficient number, since it is larger than the sum of its proper divisors (2924977).

52420943 is a wasteful number, since it uses less digits than its factorization.

52420943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8317.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 52420943 is about 7240.2308664849. The cubic root of 52420943 is about 374.2555732622.

It can be divided in two parts, 52 and 420943, that multiplied together give a triangular number (21889036 = T6616).

The spelling of 52420943 in words is "fifty-two million, four hundred twenty thousand, nine hundred forty-three".

Divisors: 1 19 347 6593 7951 151069 2758997 52420943