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10908209902 = 217440972767
BaseRepresentation
bin10100010100010111…
…00001001011101110
31001011012201110220011
422022023201023232
5134320000204102
65002224443434
7534213153142
oct121213411356
931135643804
1010908209902
114698444607
12214517957a
13104abc9995
14756a19222
1543c9ac2d7
hex28a2e12ee

10908209902 has 16 divisors (see below), whose sum is σ = 17328971520. Its totient is φ = 5132040448.

The previous prime is 10908209869. The next prime is 10908209911. The reversal of 10908209902 is 20990280901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113523 + ... + 186289.

It is an arithmetic number, because the mean of its divisors is an integer number (1083060720).

Almost surely, 210908209902 is an apocalyptic number.

10908209902 is a deficient number, since it is larger than the sum of its proper divisors (6420761618).

10908209902 is a wasteful number, since it uses less digits than its factorization.

10908209902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77195.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 10908209902 in words is "ten billion, nine hundred eight million, two hundred nine thousand, nine hundred two".

Divisors: 1 2 17 34 4409 8818 72767 74953 145534 149906 1237039 2474078 320829703 641659406 5454104951 10908209902