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10100001228 = 2231997456683
BaseRepresentation
bin10010110100000000…
…11100100111001100
3222001212221020000120
421122000130213030
5131141100014403
64350114024540
7505200410502
oct113200344714
928055836016
1010100001228
114313207459
121b5a578150
13c4c6316b5
146bb554672
153e1a62e53
hex25a01c9cc

10100001228 has 48 divisors (see below), whose sum is σ = 25062817920. Its totient is φ = 3156585984.

The previous prime is 10100001227. The next prime is 10100001253. The reversal of 10100001228 is 82210000101.

It is not an unprimeable number, because it can be changed into a prime (10100001227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206226 + ... + 250457.

It is an arithmetic number, because the mean of its divisors is an integer number (522142040).

Almost surely, 210100001228 is an apocalyptic number.

It is an amenable number.

10100001228 is an abundant number, since it is smaller than the sum of its proper divisors (14962816692).

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

10100001228 is a wasteful number, since it uses less digits than its factorization.

10100001228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456806 (or 456804 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10100001228 its reverse (82210000101), we get a palindrome (92310001329).

The spelling of 10100001228 in words is "ten billion, one hundred million, one thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 97 114 194 228 291 388 582 1164 1843 3686 5529 7372 11058 22116 456683 913366 1370049 1826732 2740098 5480196 8676977 17353954 26030931 34707908 44298251 52061862 88596502 104123724 132894753 177193004 265789506 531579012 841666769 1683333538 2525000307 3366667076 5050000614 10100001228