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305214012143 = 2371161186481
BaseRepresentation
bin1000111000100000010…
…11000011101011101111
31002011210220000021202222
410130100023003223233
520000034241342033
6352114031305555
731023326204045
oct4342013035357
91064726007688
10305214012143
11108493397847
124b19b67b2bb
1322a2110c5b1
1410ab57d2395
157e152db598
hex47102c3aef

305214012143 has 8 divisors (see below), whose sum is σ = 318490370016. Its totient is φ = 291938169600.

The previous prime is 305214012137. The next prime is 305214012149. The reversal of 305214012143 is 341210412503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (305214012137) and next prime (305214012149).

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

It is a cyclic number.

It is not a de Polignac number, because 305214012143 - 28 = 305214011887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305214012149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543463 + ... + 1729943.

It is an arithmetic number, because the mean of its divisors is an integer number (39811296252).

Almost surely, 2305214012143 is an apocalyptic number.

305214012143 is a deficient number, since it is larger than the sum of its proper divisors (13276357873).

305214012143 is a wasteful number, since it uses less digits than its factorization.

305214012143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257665.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 305214012143 its reverse (341210412503), we get a palindrome (646424424646).

The spelling of 305214012143 in words is "three hundred five billion, two hundred fourteen million, twelve thousand, one hundred forty-three".

Divisors: 1 23 71161 186481 1636703 4289063 13270174441 305214012143