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7975332 = 2232221537
BaseRepresentation
bin11110011011000110100100
3120000012002200
4132123012210
54020202312
6442534500
7124534461
oct36330644
916005080
107975332
114557a92
122807430
131863141
1410b8668
15a780dc
hex79b1a4

7975332 has 18 divisors (see below), whose sum is σ = 20159958. Its totient is φ = 2658432.

The previous prime is 7975327. The next prime is 7975337. The reversal of 7975332 is 2335797.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7975327) and next prime (7975337).

It can be written as a sum of positive squares in only one way, i.e., 7750656 + 224676 = 2784^2 + 474^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 221537 = 7975332 / (7 + 9 + 7 + 5 + 3 + 3 + 2).

It is a d-powerful number, because it can be written as 72 + 94 + 78 + 57 + 312 + 313 + 25 .

It is not an unprimeable number, because it can be changed into a prime (7975337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110733 + ... + 110804.

Almost surely, 27975332 is an apocalyptic number.

It is an amenable number.

7975332 is an abundant number, since it is smaller than the sum of its proper divisors (12184626).

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

7975332 is a wasteful number, since it uses less digits than its factorization.

7975332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221547 (or 221542 counting only the distinct ones).

The product of its digits is 39690, while the sum is 36.

The square root of 7975332 is about 2824.0630304581. The cubic root of 7975332 is about 199.7942216824.

The spelling of 7975332 in words is "seven million, nine hundred seventy-five thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 221537 443074 664611 886148 1329222 1993833 2658444 3987666 7975332