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1228393195 = 5245678639
BaseRepresentation
bin100100100110111…
…1100101011101011
310011121102211200021
41021031330223223
510003432040240
6321520421311
742304112161
oct11115745353
93147384607
101228393195
11580439a97
122a3477837
13167655ca3
14b9201231
1572c9854a
hex4937caeb

1228393195 has 4 divisors (see below), whose sum is σ = 1474071840. Its totient is φ = 982714552.

The previous prime is 1228393183. The next prime is 1228393211. The reversal of 1228393195 is 5913938221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1228393195 - 25 = 1228393163 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122839315 + ... + 122839324.

It is an arithmetic number, because the mean of its divisors is an integer number (368517960).

Almost surely, 21228393195 is an apocalyptic number.

1228393195 is a deficient number, since it is larger than the sum of its proper divisors (245678645).

1228393195 is an equidigital number, since it uses as much as digits as its factorization.

1228393195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245678644.

The product of its digits is 116640, while the sum is 43.

The square root of 1228393195 is about 35048.4406928468. The cubic root of 1228393195 is about 1070.9745088775.

The spelling of 1228393195 in words is "one billion, two hundred twenty-eight million, three hundred ninety-three thousand, one hundred ninety-five".

Divisors: 1 5 245678639 1228393195