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7944372 = 2233174327
BaseRepresentation
bin11110010011100010110100
3112221121122000
4132103202310
54013204442
6442135300
7124345302
oct36234264
915847560
107944372
1145367a7
1227b1530
131852017
1410ab272
15a6dd4c
hex7938b4

7944372 has 48 divisors (see below), whose sum is σ = 21813120. Its totient is φ = 2491776.

The previous prime is 7944353. The next prime is 7944373. The reversal of 7944372 is 2734497.

7944372 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×79443722 = 126226092948768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 75 + 9 + 43 + 48 + 3 + 78 + 221 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328 + ... + 3999.

It is an arithmetic number, because the mean of its divisors is an integer number (454440).

Almost surely, 27944372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7944372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10906560).

7944372 is an abundant number, since it is smaller than the sum of its proper divisors (13868748).

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

7944372 is a wasteful number, since it uses less digits than its factorization.

7944372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357 (or 4349 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 7944372 is about 2818.5762363293. The cubic root of 7944372 is about 199.5353546930.

The spelling of 7944372 in words is "seven million, nine hundred forty-four thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 102 108 153 204 306 459 612 918 1836 4327 8654 12981 17308 25962 38943 51924 73559 77886 116829 147118 155772 220677 233658 294236 441354 467316 662031 882708 1324062 1986093 2648124 3972186 7944372