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30012530724 = 22331122296643
BaseRepresentation
bin11011111100111000…
…101110000000100100
32212110121212112022000
4123330320232000210
5442431201440344
621442040405300
72111511205401
oct337470560044
985417775260
1030012530724
1111801322600
125997176830
132aa3b61827
141649d8b2a8
15ba9ca1a69
hex6fce2e024

30012530724 has 72 divisors (see below), whose sum is σ = 85527022560. Its totient is φ = 9094702320.

The previous prime is 30012530707. The next prime is 30012530729. The reversal of 30012530724 is 42703521003.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30012530729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1135254 + ... + 1161389.

Almost surely, 230012530724 is an apocalyptic number.

It is an amenable number.

30012530724 is an abundant number, since it is smaller than the sum of its proper divisors (55514491836).

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

30012530724 is a wasteful number, since it uses less digits than its factorization.

30012530724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296678 (or 2296659 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The spelling of 30012530724 in words is "thirty billion, twelve million, five hundred thirty thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 121 132 198 242 297 363 396 484 594 726 1089 1188 1452 2178 3267 4356 6534 13068 2296643 4593286 6889929 9186572 13779858 20669787 25263073 27559716 41339574 50526146 62009361 75789219 82679148 101052292 124018722 151578438 227367657 248037444 277893803 303156876 454735314 555787606 682102971 833681409 909470628 1111575212 1364205942 1667362818 2501044227 2728411884 3334725636 5002088454 7503132681 10004176908 15006265362 30012530724