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120938245 = 5173139813
BaseRepresentation
bin1110011010101…
…01111100000101
322102120022002021
413031111330011
5221430010440
620000043141
72665646431
oct715257405
9272508067
10120938245
11622a276a
12346034b1
131c094cbc
14120c19c1
15a93d84a
hex7355f05

120938245 has 8 divisors (see below), whose sum is σ = 145965816. Its totient is φ = 96190656.

The previous prime is 120938243. The next prime is 120938263. The reversal of 120938245 is 542839021.

It can be written as a sum of positive squares in 4 ways, for example, as 28451556 + 92486689 = 5334^2 + 9617^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 120938245 - 21 = 120938243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120938245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120938243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69042 + ... + 70771.

It is an arithmetic number, because the mean of its divisors is an integer number (18245727).

Almost surely, 2120938245 is an apocalyptic number.

It is an amenable number.

120938245 is a deficient number, since it is larger than the sum of its proper divisors (25027571).

120938245 is a wasteful number, since it uses less digits than its factorization.

120938245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139991.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 120938245 is about 10997.1925962947. The cubic root of 120938245 is about 494.5245852041.

The spelling of 120938245 in words is "one hundred twenty million, nine hundred thirty-eight thousand, two hundred forty-five".

Divisors: 1 5 173 865 139813 699065 24187649 120938245