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920202601 = 4492049449
BaseRepresentation
bin110110110110010…
…010110101101001
32101010112010122211
4312312102311221
53341032440401
6231151045121
731542410263
oct6666226551
92333463584
10920202601
1143248091a
122182107a1
1311884b0a6
148a2d8b33
1555bbc951
hex36d92d69

920202601 has 4 divisors (see below), whose sum is σ = 922252500. Its totient is φ = 918152704.

The previous prime is 920202593. The next prime is 920202641. The reversal of 920202601 is 106202029.

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 305410576 + 614792025 = 17476^2 + 24795^2 .

It is a cyclic number.

It is not a de Polignac number, because 920202601 - 23 = 920202593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920202641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024276 + ... + 1025173.

It is an arithmetic number, because the mean of its divisors is an integer number (230563125).

Almost surely, 2920202601 is an apocalyptic number.

It is an amenable number.

920202601 is a deficient number, since it is larger than the sum of its proper divisors (2049899).

920202601 is a wasteful number, since it uses less digits than its factorization.

920202601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049898.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 920202601 is about 30334.8413709385. The cubic root of 920202601 is about 972.6602149892.

The spelling of 920202601 in words is "nine hundred twenty million, two hundred two thousand, six hundred one".

Divisors: 1 449 2049449 920202601