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203102330320 = 2455347901493
BaseRepresentation
bin1011110100100111010…
…1111001110111010000
3201102020112212101122101
42331021311321313100
511311423144032240
6233145351450144
720450031215551
oct2751165716720
9642215771571
10203102330320
1179153a7495a
1233442686954
13161c9c81aa6
149b8a124328
15543a9cd39a
hex2f49d79dd0

203102330320 has 40 divisors (see below), whose sum is σ = 481122605736. Its totient is φ = 79708082688.

The previous prime is 203102330309. The next prime is 203102330363. The reversal of 203102330320 is 23033201302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18315832896 + 184786497424 = 135336^2 + 429868^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23946507 + ... + 23954986.

Almost surely, 2203102330320 is an apocalyptic number.

203102330320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203102330320 is an abundant number, since it is smaller than the sum of its proper divisors (278020275416).

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

203102330320 is a wasteful number, since it uses less digits than its factorization.

203102330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47901559 (or 47901553 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 203102330320 its reverse (23033201302), we get a palindrome (226135531622).

The spelling of 203102330320 in words is "two hundred three billion, one hundred two million, three hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 4240 47901493 95802986 191605972 239507465 383211944 479014930 766423888 958029860 1916059720 2538779129 3832119440 5077558258 10155116516 12693895645 20310233032 25387791290 40620466064 50775582580 101551165160 203102330320