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1020103380 = 223255667241
BaseRepresentation
bin111100110011011…
…000101011010100
32122002111121202200
4330303120223110
54042121302010
6245120204500
734164510222
oct7463305324
92562447680
101020103380
1148390484a
12245769730
1313345868a
14996a1b12
155e852cc0
hex3ccd8ad4

1020103380 has 36 divisors (see below), whose sum is σ = 3094314132. Its totient is φ = 272027520.

The previous prime is 1020103373. The next prime is 1020103393. The reversal of 1020103380 is 833010201.

It can be written as a sum of positive squares in 2 ways, for example, as 266930244 + 753173136 = 16338^2 + 27444^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×10201033802 = 2081221811774848800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2833441 + ... + 2833800.

Almost surely, 21020103380 is an apocalyptic number.

1020103380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020103380 is an abundant number, since it is smaller than the sum of its proper divisors (2074210752).

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

1020103380 is a wasteful number, since it uses less digits than its factorization.

1020103380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667256 (or 5667251 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1020103380 is about 31939.0572810157. The cubic root of 1020103380 is about 1006.6567164687.

Adding to 1020103380 its reverse (833010201), we get a palindrome (1853113581).

The spelling of 1020103380 in words is "one billion, twenty million, one hundred three thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 5667241 11334482 17001723 22668964 28336205 34003446 51005169 56672410 68006892 85008615 102010338 113344820 170017230 204020676 255025845 340034460 510051690 1020103380