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1214231440042 = 21735712689413
BaseRepresentation
bin10001101010110101110…
…101010110101010101010
311022002010212200011121101
4101222311311112222222
5124343221222040132
62325451001432014
7153503533642615
oct21526565265252
94262125604541
101214231440042
11428a52aa1695
121773ab79b60a
138a669b3b44a
1442aaa64917c
15218b92d87e7
hex11ab5d56aaa

1214231440042 has 8 divisors (see below), whose sum is σ = 1928485228356. Its totient is φ = 571403030592.

The previous prime is 1214231440033. The next prime is 1214231440049. The reversal of 1214231440042 is 2400441324121.

It can be written as a sum of positive squares in 2 ways, for example, as 1214137330641 + 94109401 = 1101879^2 + 9701^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1214231440049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17856344673 + ... + 17856344740.

Almost surely, 21214231440042 is an apocalyptic number.

1214231440042 is a deficient number, since it is larger than the sum of its proper divisors (714253788314).

1214231440042 is a wasteful number, since it uses less digits than its factorization.

1214231440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35712689432.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1214231440042 its reverse (2400441324121), we get a palindrome (3614672764163).

The spelling of 1214231440042 in words is "one trillion, two hundred fourteen billion, two hundred thirty-one million, four hundred forty thousand, forty-two".

Divisors: 1 2 17 34 35712689413 71425378826 607115720021 1214231440042