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312000424042 = 2156000212021
BaseRepresentation
bin1001000101001001010…
…11001010100001101010
31002211022211211201202211
410202210223022201222
520102434102032132
6355155255515334
731353442563346
oct4424453124152
91084284751684
10312000424042
1111035611851a
1250574388b4a
13235630b1438
141115ac30626
1581b0eb5147
hex48a4aca86a

312000424042 has 4 divisors (see below), whose sum is σ = 468000636066. Its totient is φ = 156000212020.

The previous prime is 312000424037. The next prime is 312000424097. The reversal of 312000424042 is 240424000213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240424000213 = 387836199211.

It can be written as a sum of positive squares in only one way, i.e., 252356527201 + 59643896841 = 502351^2 + 244221^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78000106009 + ... + 78000106012.

Almost surely, 2312000424042 is an apocalyptic number.

312000424042 is a deficient number, since it is larger than the sum of its proper divisors (156000212024).

312000424042 is a wasteful number, since it uses less digits than its factorization.

312000424042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156000212023.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 312000424042 its reverse (240424000213), we get a palindrome (552424424255).

The spelling of 312000424042 in words is "three hundred twelve billion, four hundred twenty-four thousand, forty-two".

Divisors: 1 2 156000212021 312000424042