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30448136282 = 215224068141
BaseRepresentation
bin11100010110110110…
…011011000001011010
32220120222112120210012
4130112312123001122
5444324210330112
621553201121522
72125350613424
oct342666330132
986528476705
1030448136282
1111a051a74a3
125a990292a2
132b4318b6b5
14168bb7d814
15bd314a022
hex716d9b05a

30448136282 has 4 divisors (see below), whose sum is σ = 45672204426. Its totient is φ = 15224068140.

The previous prime is 30448136281. The next prime is 30448136309. The reversal of 30448136282 is 28263184403.

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

It can be written as a sum of positive squares in only one way, i.e., 24037091521 + 6411044761 = 155039^2 + 80069^2 .

It is not an unprimeable number, because it can be changed into a prime (30448136281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7612034069 + ... + 7612034072.

Almost surely, 230448136282 is an apocalyptic number.

30448136282 is a deficient number, since it is larger than the sum of its proper divisors (15224068144).

30448136282 is a wasteful number, since it uses less digits than its factorization.

30448136282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15224068143.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 30448136282 in words is "thirty billion, four hundred forty-eight million, one hundred thirty-six thousand, two hundred eighty-two".

Divisors: 1 2 15224068141 30448136282