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920920208 = 24132340577
BaseRepresentation
bin110110111001000…
…010000010010000
32101011212121000212
4312321002002100
53341223421313
6231214303252
731551456365
oct6671020220
92334777025
10920920208
11432920a8a
122184b7b28
13118a3c900
148a44446c
1555cb03a8
hex36e42090

920920208 has 30 divisors (see below), whose sum is σ = 1932098994. Its totient is φ = 425038848.

The previous prime is 920920199. The next prime is 920920211. The reversal of 920920208 is 802029029.

It can be written as a sum of positive squares in 3 ways, for example, as 115949824 + 804970384 = 10768^2 + 28372^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167585 + ... + 172992.

Almost surely, 2920920208 is an apocalyptic number.

It is an amenable number.

920920208 is an abundant number, since it is smaller than the sum of its proper divisors (1011178786).

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

920920208 is a wasteful number, since it uses less digits than its factorization.

920920208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340611 (or 340592 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 920920208 is about 30346.6671646163. The cubic root of 920920208 is about 972.9129877366.

The spelling of 920920208 in words is "nine hundred twenty million, nine hundred twenty thousand, two hundred eight".

Divisors: 1 2 4 8 13 16 26 52 104 169 208 338 676 1352 2704 340577 681154 1362308 2724616 4427501 5449232 8855002 17710004 35420008 57557513 70840016 115115026 230230052 460460104 920920208