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1020102002100 = 2232521133446669
BaseRepresentation
bin11101101100000101101…
…00010100010110110100
310121112001122212221022100
432312002310110112310
5113203132103031400
62100343422102100
7133462035644106
oct16660264242664
93545048787270
101020102002100
11363693a93675
1214585211a930
137526cb3833c
14375320c1576
151b806430100
hexed82d145b4

1020102002100 has 54 divisors (see below), whose sum is σ = 3197453056070. Its totient is φ = 272027200320.

The previous prime is 1020102002093. The next prime is 1020102002119. The reversal of 1020102002100 is 12002010201.

It can be written as a sum of positive squares in 3 ways, for example, as 17756628516 + 1002345373584 = 133254^2 + 1001172^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 566722435 + ... + 566724234.

Almost surely, 21020102002100 is an apocalyptic number.

1020102002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020102002100 is an abundant number, since it is smaller than the sum of its proper divisors (2177351053970).

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

1020102002100 is a wasteful number, since it uses less digits than its factorization.

1020102002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133446689 (or 1133446679 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1020102002100 its reverse (12002010201), we get a palindrome (1032104012301).

The spelling of 1020102002100 in words is "one trillion, twenty billion, one hundred two million, two thousand, one hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 1133446669 2266893338 3400340007 4533786676 5667233345 6800680014 10201020021 11334466690 13601360028 17001700035 20402040042 22668933380 28336166725 34003400070 40804080084 51005100105 56672333450 68006800140 85008500175 102010200210 113344666900 170017000350 204020400420 255025500525 340034000700 510051001050 1020102002100