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8373940 = 2252931429
BaseRepresentation
bin11111111100011010110100
3120202102212221
4133330122310
54120431230
6455252124
7131114551
oct37743264
916672787
108373940
1147aa513
12297a044
1319726c3
14117da28
15b0627a
hex7fc6b4

8373940 has 24 divisors (see below), whose sum is σ = 17657640. Its totient is φ = 3335808.

The previous prime is 8373931. The next prime is 8373941. The reversal of 8373940 is 493738.

8373940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 910116 + 7463824 = 954^2 + 2732^2 .

It is a super-2 number, since 2×83739402 = 140245742247200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8373896 and 8373905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8373941) 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, 5146 + ... + 6574.

It is an arithmetic number, because the mean of its divisors is an integer number (735735).

Almost surely, 28373940 is an apocalyptic number.

It is an amenable number.

8373940 is an abundant number, since it is smaller than the sum of its proper divisors (9283700).

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

8373940 is a wasteful number, since it uses less digits than its factorization.

8373940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 8373940 is about 2893.7760797961. The cubic root of 8373940 is about 203.0688370170.

The spelling of 8373940 in words is "eight million, three hundred seventy-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 293 586 1172 1429 1465 2858 2930 5716 5860 7145 14290 28580 418697 837394 1674788 2093485 4186970 8373940