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30533054540 = 22511091376603
BaseRepresentation
bin11100011011111010…
…010111000001001100
32220210220022212201212
4130123322113001030
51000012430221130
622005433153552
72130431452502
oct343372270114
986726285655
1030533054540
1111a4912787a
125b0155b8b8
132b579515a1
141699166672
15bda820e95
hex71be9704c

30533054540 has 24 divisors (see below), whose sum is σ = 64177278480. Its totient is φ = 12202200128.

The previous prime is 30533054537. The next prime is 30533054543. The reversal of 30533054540 is 4545033503.

It is an interprime number because it is at equal distance from previous prime (30533054537) and next prime (30533054543).

It is a super-2 number, since 2×305330545402 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30533054497 and 30533054506.

It is not an unprimeable number, because it can be changed into a prime (30533054543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666122 + ... + 710481.

It is an arithmetic number, because the mean of its divisors is an integer number (2674053270).

Almost surely, 230533054540 is an apocalyptic number.

It is an amenable number.

30533054540 is an abundant number, since it is smaller than the sum of its proper divisors (33644223940).

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

30533054540 is a wasteful number, since it uses less digits than its factorization.

30533054540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377721 (or 1377719 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 32.

The spelling of 30533054540 in words is "thirty billion, five hundred thirty-three million, fifty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 1109 2218 4436 5545 11090 22180 1376603 2753206 5506412 6883015 13766030 27532060 1526652727 3053305454 6106610908 7633263635 15266527270 30533054540