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920540902 = 21074301593
BaseRepresentation
bin110110110111100…
…101011011100110
32101011011022201111
4312313211123212
53341124302102
6231202215234
731545316501
oct6667453346
92334138644
10920540902
11432692006
1221835451a
13118939078
148a386138
1555c37cd7
hex36de56e6

920540902 has 8 divisors (see below), whose sum is σ = 1393716456. Its totient is φ = 455968752.

The previous prime is 920540879. The next prime is 920540909. The reversal of 920540902 is 209045029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920540909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2150583 + ... + 2151010.

It is an arithmetic number, because the mean of its divisors is an integer number (174214557).

Almost surely, 2920540902 is an apocalyptic number.

920540902 is a deficient number, since it is larger than the sum of its proper divisors (473175554).

920540902 is a wasteful number, since it uses less digits than its factorization.

920540902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301702.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 920540902 is about 30340.4169714261. The cubic root of 920540902 is about 972.7793958476.

The spelling of 920540902 in words is "nine hundred twenty million, five hundred forty thousand, nine hundred two".

Divisors: 1 2 107 214 4301593 8603186 460270451 920540902