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392970241 = 421933421
BaseRepresentation
bin10111011011000…
…100000000000001
31000101102221211101
4113123010000001
51301100021431
6102554414401
712511122556
oct2733040001
91011387741
10392970241
111919043a4
12ab731401
136354c991
143a294a2d
1524775961
hex176c4001

392970241 has 4 divisors (see below), whose sum is σ = 393904084. Its totient is φ = 392036400.

The previous prime is 392970211. The next prime is 392970251. The reversal of 392970241 is 142079293.

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 32729841 + 360240400 = 5721^2 + 18980^2 .

It is a cyclic number.

It is not a de Polignac number, because 392970241 - 221 = 390873089 is a prime.

It is a super-2 number, since 2×3929702412 = 308851220623196162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 392970241.

It is not an unprimeable number, because it can be changed into a prime (392970211) 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, 466290 + ... + 467131.

It is an arithmetic number, because the mean of its divisors is an integer number (98476021).

Almost surely, 2392970241 is an apocalyptic number.

It is an amenable number.

392970241 is a deficient number, since it is larger than the sum of its proper divisors (933843).

392970241 is an equidigital number, since it uses as much as digits as its factorization.

392970241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933842.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 392970241 is about 19823.4770159021. The cubic root of 392970241 is about 732.4644554811.

The spelling of 392970241 in words is "three hundred ninety-two million, nine hundred seventy thousand, two hundred forty-one".

Divisors: 1 421 933421 392970241