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1958144252 = 221728796239
BaseRepresentation
bin111010010110110…
…1110100011111100
312001110121000221012
41310231232203330
513002241104002
6522145454352
766344644241
oct16455564374
95043530835
101958144252
11915359839
124679413b8
132528b0c4c
141480c15c8
15b6d95d52
hex74b6e8fc

1958144252 has 12 divisors (see below), whose sum is σ = 3628326240. Its totient is φ = 921479616.

The previous prime is 1958144239. The next prime is 1958144257. The reversal of 1958144252 is 2524418591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958144257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14398052 + ... + 14398187.

It is an arithmetic number, because the mean of its divisors is an integer number (302360520).

Almost surely, 21958144252 is an apocalyptic number.

It is an amenable number.

1958144252 is a deficient number, since it is larger than the sum of its proper divisors (1670181988).

1958144252 is a wasteful number, since it uses less digits than its factorization.

1958144252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28796260 (or 28796258 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 1958144252 is about 44250.9237417706. The cubic root of 1958144252 is about 1251.0698578222.

The spelling of 1958144252 in words is "one billion, nine hundred fifty-eight million, one hundred forty-four thousand, two hundred fifty-two".

Divisors: 1 2 4 17 34 68 28796239 57592478 115184956 489536063 979072126 1958144252