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1228148674 = 21274835231
BaseRepresentation
bin100100100110100…
…0000111111000010
310011120222102020221
41021031000333002
510003401224144
6321511253254
742302043244
oct11115007702
93146872227
101228148674
11580292305
122a337a22a
1316759b8bc
14b917a094
1572c4ad84
hex49340fc2

1228148674 has 8 divisors (see below), whose sum is σ = 1856729088. Its totient is φ = 609238980.

The previous prime is 1228148633. The next prime is 1228148683. The reversal of 1228148674 is 4768418221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1228148674.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417362 + ... + 2417869.

It is an arithmetic number, because the mean of its divisors is an integer number (232091136).

Almost surely, 21228148674 is an apocalyptic number.

1228148674 is a deficient number, since it is larger than the sum of its proper divisors (628580414).

1228148674 is a wasteful number, since it uses less digits than its factorization.

1228148674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835360.

The product of its digits is 172032, while the sum is 43.

The square root of 1228148674 is about 35044.9521900088. The cubic root of 1228148674 is about 1070.9034422905.

The spelling of 1228148674 in words is "one billion, two hundred twenty-eight million, one hundred forty-eight thousand, six hundred seventy-four".

Divisors: 1 2 127 254 4835231 9670462 614074337 1228148674