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7950940 = 225397547
BaseRepresentation
bin11110010101001001011100
3112221221122021
4132111021130
54013412230
6442225524
7124403404
oct36251134
915857567
107950940
114540728
1227b52a4
131854cca
1410ad804
15a70c7a
hex79525c

7950940 has 12 divisors (see below), whose sum is σ = 16697016. Its totient is φ = 3180368.

The previous prime is 7950937. The next prime is 7950947. The reversal of 7950940 is 490597.

7950940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7950896 and 7950905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7950947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198754 + ... + 198793.

It is an arithmetic number, because the mean of its divisors is an integer number (1391418).

Almost surely, 27950940 is an apocalyptic number.

It is an amenable number.

7950940 is an abundant number, since it is smaller than the sum of its proper divisors (8746076).

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

7950940 is a wasteful number, since it uses less digits than its factorization.

7950940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397556 (or 397554 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 7950940 is about 2819.7411228693. The cubic root of 7950940 is about 199.5903280842.

The spelling of 7950940 in words is "seven million, nine hundred fifty thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 397547 795094 1590188 1987735 3975470 7950940