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838420373 = 7971234787
BaseRepresentation
bin110001111110010…
…100011110010101
32011102122011112102
4301332110132111
53204113422443
6215110131445
726530312160
oct6176243625
92142564472
10838420373
113a02a26aa
121b4950b85
1310491573b
147d4caad7
154d915cb8
hex31f94795

838420373 has 8 divisors (see below), whose sum is σ = 968073792. Its totient is φ = 711236736.

The previous prime is 838420361. The next prime is 838420397. The reversal of 838420373 is 373024838.

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

It is not a de Polignac number, because 838420373 - 214 = 838403989 is a prime.

It is a super-2 number, since 2×8384203732 = 1405897443722918258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838420273) 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, 616715 + ... + 618072.

It is an arithmetic number, because the mean of its divisors is an integer number (121009224).

Almost surely, 2838420373 is an apocalyptic number.

It is an amenable number.

838420373 is a deficient number, since it is larger than the sum of its proper divisors (129653419).

838420373 is a wasteful number, since it uses less digits than its factorization.

838420373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234891.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 838420373 is about 28955.4895140801. The cubic root of 838420373 is about 942.9469807473.

The spelling of 838420373 in words is "eight hundred thirty-eight million, four hundred twenty thousand, three hundred seventy-three".

Divisors: 1 7 97 679 1234787 8643509 119774339 838420373