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7693940 = 225384697
BaseRepresentation
bin11101010110011001110100
3112110220002202
4131112121310
53432201230
6432524032
7122253212
oct35263164
915426082
107693940
114385631
1226b0618
131795037
141043cb2
15a1ea45
hex756674

7693940 has 12 divisors (see below), whose sum is σ = 16157316. Its totient is φ = 3077568.

The previous prime is 7693927. The next prime is 7693951. The reversal of 7693940 is 493967.

It can be written as a sum of positive squares in 2 ways, for example, as 4553956 + 3139984 = 2134^2 + 1772^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7693894 and 7693903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192329 + ... + 192368.

It is an arithmetic number, because the mean of its divisors is an integer number (1346443).

Almost surely, 27693940 is an apocalyptic number.

It is an amenable number.

7693940 is an abundant number, since it is smaller than the sum of its proper divisors (8463376).

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

7693940 is a wasteful number, since it uses less digits than its factorization.

7693940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384706 (or 384704 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 7693940 is about 2773.7952339710. The cubic root of 7693940 is about 197.4162653103.

The spelling of 7693940 in words is "seven million, six hundred ninety-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 384697 769394 1538788 1923485 3846970 7693940