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30421114142 = 215210557071
BaseRepresentation
bin11100010101001111…
…010101110100011110
32220112002200201101012
4130111033111310132
5444300301123032
621550354015222
72124602126606
oct342517256436
986462621335
1030421114142
11119a0a20351
125a8bb77512
132b3a6b9c73
141688347c06
15bd0aad6b2
hex7153d5d1e

30421114142 has 4 divisors (see below), whose sum is σ = 45631671216. Its totient is φ = 15210557070.

The previous prime is 30421114081. The next prime is 30421114147. The reversal of 30421114142 is 24141112403.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30421114147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7605278534 + ... + 7605278537.

It is an arithmetic number, because the mean of its divisors is an integer number (11407917804).

Almost surely, 230421114142 is an apocalyptic number.

30421114142 is a deficient number, since it is larger than the sum of its proper divisors (15210557074).

30421114142 is a wasteful number, since it uses less digits than its factorization.

30421114142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15210557073.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 30421114142 its reverse (24141112403), we get a palindrome (54562226545).

The spelling of 30421114142 in words is "thirty billion, four hundred twenty-one million, one hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 15210557071 30421114142