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972040541 = 1297749453
BaseRepresentation
bin111001111100000…
…010100101011101
32111202001202221112
4321330002211131
53442320244131
6240242111405
733042131303
oct7174024535
92452052845
10972040541
1145976749a
1223164b565
131264cac24
1493150273
155a50c02b
hex39f0295d

972040541 has 4 divisors (see below), whose sum is σ = 972791292. Its totient is φ = 971289792.

The previous prime is 972040529. The next prime is 972040547. The reversal of 972040541 is 145040279.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 803949316 + 168091225 = 28354^2 + 12965^2 .

It is a cyclic number.

It is not a de Polignac number, because 972040541 - 26 = 972040477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 972040498 and 972040507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972040547) 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, 373430 + ... + 376023.

It is an arithmetic number, because the mean of its divisors is an integer number (243197823).

Almost surely, 2972040541 is an apocalyptic number.

It is an amenable number.

972040541 is a deficient number, since it is larger than the sum of its proper divisors (750751).

972040541 is a wasteful number, since it uses less digits than its factorization.

972040541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750750.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 972040541 is about 31177.5647060510. The cubic root of 972040541 is about 990.5919464350.

The spelling of 972040541 in words is "nine hundred seventy-two million, forty thousand, five hundred forty-one".

Divisors: 1 1297 749453 972040541