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7942372 = 221985593
BaseRepresentation
bin11110010011000011100100
3112221111212221
4132103003210
54013123442
6442122124
7124336414
oct36230344
915844787
107942372
114535249
1227b0344
131851139
1410aa644
15a6d467
hex7930e4

7942372 has 6 divisors (see below), whose sum is σ = 13899158. Its totient is φ = 3971184.

The previous prime is 7942369. The next prime is 7942373. The reversal of 7942372 is 2732497.

It can be written as a sum of positive squares in only one way, i.e., 7706176 + 236196 = 2776^2 + 486^2 .

It is a d-powerful number, because it can be written as 72 + 92 + 48 + 213 + 38 + 78 + 221 .

It is not an unprimeable number, because it can be changed into a prime (7942373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992793 + ... + 992800.

Almost surely, 27942372 is an apocalyptic number.

It is an amenable number.

7942372 is a deficient number, since it is larger than the sum of its proper divisors (5956786).

7942372 is a wasteful number, since it uses less digits than its factorization.

7942372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985597 (or 1985595 counting only the distinct ones).

The product of its digits is 21168, while the sum is 34.

The square root of 7942372 is about 2818.2214249416. The cubic root of 7942372 is about 199.5186089094.

The spelling of 7942372 in words is "seven million, nine hundred forty-two thousand, three hundred seventy-two".

Divisors: 1 2 4 1985593 3971186 7942372