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1228206102 = 23211970147
BaseRepresentation
bin100100100110100…
…1111000000010110
310011121002100000220
41021031033000112
510003410043402
6321512415210
742302402544
oct11115170026
93147070026
101228206102
11580321472
122a33a7506
131675bba96
14b9192d94
1572c5cdbc
hex4934f016

1228206102 has 16 divisors (see below), whose sum is σ = 2468056512. Its totient is φ = 407461320.

The previous prime is 1228206097. The next prime is 1228206103. The reversal of 1228206102 is 2016028221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228206103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 483808 + ... + 486339.

It is an arithmetic number, because the mean of its divisors is an integer number (154253532).

Almost surely, 21228206102 is an apocalyptic number.

1228206102 is an abundant number, since it is smaller than the sum of its proper divisors (1239850410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228206102 is a wasteful number, since it uses less digits than its factorization.

1228206102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970363.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1228206102 is about 35045.7715281031. The cubic root of 1228206102 is about 1070.9201337778.

The spelling of 1228206102 in words is "one billion, two hundred twenty-eight million, two hundred six thousand, one hundred two".

Divisors: 1 2 3 6 211 422 633 1266 970147 1940294 2910441 5820882 204701017 409402034 614103051 1228206102