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30532400421 = 318661545387
BaseRepresentation
bin11100011011110111…
…110111010100100101
32220210212002122110020
4130123313313110211
51000012243303141
622005411145353
72130423056445
oct343367672445
986725078406
1030532400421
1111a48820386
125b012a5259
132b57782933
141699036125
15bda742266
hex71bdf7525

30532400421 has 8 divisors (see below), whose sum is σ = 40712123424. Its totient is φ = 20353805520.

The previous prime is 30532400419. The next prime is 30532400443. The reversal of 30532400421 is 12400423503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30532400421 - 21 = 30532400419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30532400391 and 30532400400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30532400221) 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, 216711 + ... + 328676.

It is an arithmetic number, because the mean of its divisors is an integer number (5089015428).

Almost surely, 230532400421 is an apocalyptic number.

It is an amenable number.

30532400421 is a deficient number, since it is larger than the sum of its proper divisors (10179723003).

30532400421 is a wasteful number, since it uses less digits than its factorization.

30532400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564051.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 30532400421 its reverse (12400423503), we get a palindrome (42932823924).

The spelling of 30532400421 in words is "thirty billion, five hundred thirty-two million, four hundred thousand, four hundred twenty-one".

Divisors: 1 3 18661 55983 545387 1636161 10177466807 30532400421