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239956145 = 51113675009
BaseRepresentation
bin11100100110101…
…11000010110001
3121201112000221122
432103113002301
5442412044040
635451032025
75642410412
oct1623270261
9551460848
10239956145
111134a3670
126843b615
133a936bb0
1423c23809
15160ed1b5
hexe4d70b1

239956145 has 32 divisors (see below), whose sum is σ = 343405440. Its totient is φ = 158653440.

The previous prime is 239956097. The next prime is 239956147. The reversal of 239956145 is 541659932.

239956145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 239956145 - 220 = 238907569 is a prime.

It is a super-2 number, since 2×2399561452 = 115157903046522050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 239956096 and 239956105.

It is not an unprimeable number, because it can be changed into a prime (239956147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45401 + ... + 50409.

It is an arithmetic number, because the mean of its divisors is an integer number (10731420).

Almost surely, 2239956145 is an apocalyptic number.

It is an amenable number.

239956145 is a deficient number, since it is larger than the sum of its proper divisors (103449295).

239956145 is a wasteful number, since it uses less digits than its factorization.

239956145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105.

The product of its digits is 291600, while the sum is 44.

The square root of 239956145 is about 15490.5179061257. The cubic root of 239956145 is about 621.4086467512.

The spelling of 239956145 in words is "two hundred thirty-nine million, nine hundred fifty-six thousand, one hundred forty-five".

Divisors: 1 5 11 13 55 65 67 143 335 715 737 871 3685 4355 5009 9581 25045 47905 55099 65117 275495 325585 335603 716287 1678015 3581435 3691633 4362839 18458165 21814195 47991229 239956145