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620213347 = 13220721617
BaseRepresentation
bin100100111101111…
…011010001100011
31121020001002202201
4210331323101203
52232233311342
6141313154031
721240504115
oct4475732143
91536032681
10620213347
11299104516
1215385b917
139b655160
145c5293b5
15396b1db7
hex24f7b463

620213347 has 8 divisors (see below), whose sum is σ = 668255616. Its totient is φ = 572218752.

The previous prime is 620213339. The next prime is 620213357. The reversal of 620213347 is 743312026.

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 620213347 - 23 = 620213339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620213357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17883 + ... + 39499.

It is an arithmetic number, because the mean of its divisors is an integer number (83531952).

Almost surely, 2620213347 is an apocalyptic number.

620213347 is a deficient number, since it is larger than the sum of its proper divisors (48042269).

620213347 is a wasteful number, since it uses less digits than its factorization.

620213347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23837.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 620213347 is about 24904.0829383457. The cubic root of 620213347 is about 852.7996943115.

The spelling of 620213347 in words is "six hundred twenty million, two hundred thirteen thousand, three hundred forty-seven".

Divisors: 1 13 2207 21617 28691 281021 47708719 620213347