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2150909379 = 32794317019
BaseRepresentation
bin1000000000110100…
…0100010111000011
312112220022111222100
42000031010113003
513401113100004
6553233241443
7104205266553
oct20015042703
95486274870
102150909379
11a04150063
12500403283
13283804158
1416593d163
15c8c71739
hex803445c3

2150909379 has 24 divisors (see below), whose sum is σ = 3153945600. Its totient is φ = 1412302320.

The previous prime is 2150909357. The next prime is 2150909389. The reversal of 2150909379 is 9739090512.

It is a happy number.

It is not a de Polignac number, because 2150909379 - 25 = 2150909347 is a prime.

It is a super-2 number, since 2×21509093792 = 9252822313340331282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2150909389) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 302932 + ... + 309950.

It is an arithmetic number, because the mean of its divisors is an integer number (131414400).

Almost surely, 22150909379 is an apocalyptic number.

2150909379 is a deficient number, since it is larger than the sum of its proper divisors (1003036221).

2150909379 is a wasteful number, since it uses less digits than its factorization.

2150909379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535 (or 7532 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 2150909379 is about 46377.8975267314. The cubic root of 2150909379 is about 1290.8448242833.

The spelling of 2150909379 in words is "two billion, one hundred fifty million, nine hundred nine thousand, three hundred seventy-nine".

Divisors: 1 3 9 79 237 431 711 1293 3879 7019 21057 34049 63171 102147 306441 554501 1663503 3025189 4990509 9075567 27226701 238989931 716969793 2150909379