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30003124240 = 2454335411601
BaseRepresentation
bin11011111100010100…
…110101100000010000
32212102222011122000201
4123330110311200100
5442421244433430
621441103024544
72111335230265
oct337424654020
985388148021
1030003124240
11117a6a88351
125993b9b154
132aa1c1a16b
141648a1d26c
15ba90448ca
hex6fc535810

30003124240 has 80 divisors (see below), whose sum is σ = 70091357616. Its totient is φ = 11943936000.

The previous prime is 30003124189. The next prime is 30003124241. The reversal of 30003124240 is 4242130003.

It can be written as a sum of positive squares in 8 ways, for example, as 15968016 + 29987156224 = 3996^2 + 173168^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (30003124241) 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, 18739440 + ... + 18741040.

Almost surely, 230003124240 is an apocalyptic number.

It is an amenable number.

30003124240 is an abundant number, since it is smaller than the sum of its proper divisors (40088233376).

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

30003124240 is a wasteful number, since it uses less digits than its factorization.

30003124240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588 (or 2582 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30003124240 its reverse (4242130003), we get a palindrome (34245254243).

The spelling of 30003124240 in words is "thirty billion, three million, one hundred twenty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 433 541 866 1082 1601 1732 2164 2165 2705 3202 3464 4328 4330 5410 6404 6928 8005 8656 8660 10820 12808 16010 17320 21640 25616 32020 34640 43280 64040 128080 234253 468506 693233 866141 937012 1171265 1386466 1732282 1874024 2342530 2772932 3464564 3466165 3748048 4330705 4685060 5545864 6929128 6932330 8661410 9370120 11091728 13858256 13864660 17322820 18740240 27729320 34645640 55458640 69291280 375039053 750078106 1500156212 1875195265 3000312424 3750390530 6000624848 7500781060 15001562120 30003124240