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120763869 = 31723102953
BaseRepresentation
bin1110011001010…
…11010111011101
322102020102212220
413030223113131
5221403420434
615552215553
72664322152
oct714532735
9272212786
10120763869
1162193756
123453a5b9
131c033815
1412078229
15a906d49
hex732b5dd

120763869 has 16 divisors (see below), whose sum is σ = 177904512. Its totient is φ = 72478208.

The previous prime is 120763849. The next prime is 120763871. The reversal of 120763869 is 968367021.

It is a happy number.

It is not a de Polignac number, because 120763869 - 220 = 119715293 is a prime.

It is a super-2 number, since 2×1207638692 = 29167824111698322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120763869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120763849) 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 15 ways as a sum of consecutive naturals, for example, 50304 + ... + 52649.

It is an arithmetic number, because the mean of its divisors is an integer number (11119032).

Almost surely, 2120763869 is an apocalyptic number.

It is an amenable number.

120763869 is a deficient number, since it is larger than the sum of its proper divisors (57140643).

120763869 is a wasteful number, since it uses less digits than its factorization.

120763869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102996.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 120763869 is about 10989.2615311494. The cubic root of 120763869 is about 494.2867924978.

The spelling of 120763869 in words is "one hundred twenty million, seven hundred sixty-three thousand, eight hundred sixty-nine".

Divisors: 1 3 17 23 51 69 391 1173 102953 308859 1750201 2367919 5250603 7103757 40254623 120763869