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1228104700 = 225274316529
BaseRepresentation
bin100100100110011…
…0110001111111100
310011120220011221021
41021030312033330
510003343322300
6321510313524
742301501114
oct11114661774
93146804837
101228104700
11580262269
122a33588a4
13167584894
14b9168044
1572c3cd1a
hex493363fc

1228104700 has 36 divisors (see below), whose sum is σ = 2668735440. Its totient is φ = 490551040.

The previous prime is 1228104677. The next prime is 1228104721. The reversal of 1228104700 is 74018221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66036 + ... + 82564.

It is an arithmetic number, because the mean of its divisors is an integer number (74131540).

Almost surely, 21228104700 is an apocalyptic number.

1228104700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1228104700 is an abundant number, since it is smaller than the sum of its proper divisors (1440630740).

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

1228104700 is a wasteful number, since it uses less digits than its factorization.

1228104700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17286 (or 17279 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1228104700 is about 35044.3247901854. The cubic root of 1228104700 is about 1070.8906608656.

The spelling of 1228104700 in words is "one billion, two hundred twenty-eight million, one hundred four thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 743 1486 2972 3715 7430 14860 16529 18575 33058 37150 66116 74300 82645 165290 330580 413225 826450 1652900 12281047 24562094 49124188 61405235 122810470 245620940 307026175 614052350 1228104700