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20301244142 = 230949327979
BaseRepresentation
bin10010111010000011…
…000110011011101110
31221101211101001112012
4102322003012123232
5313034104303032
613154250041222
71316040504464
oct227203063356
957354331465
1020301244142
118678583223
123b26a19212
131bb6c1caca
14da8300834
157dc4236b2
hex4ba0c66ee

20301244142 has 8 divisors (see below), whose sum is σ = 30452943000. Its totient is φ = 10150263144.

The previous prime is 20301244079. The next prime is 20301244153. The reversal of 20301244142 is 24144210302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102092 + ... + 225887.

It is an arithmetic number, because the mean of its divisors is an integer number (3806617875).

Almost surely, 220301244142 is an apocalyptic number.

20301244142 is a deficient number, since it is larger than the sum of its proper divisors (10151698858).

20301244142 is a wasteful number, since it uses less digits than its factorization.

20301244142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358930.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20301244142 its reverse (24144210302), we get a palindrome (44445454444).

The spelling of 20301244142 in words is "twenty billion, three hundred one million, two hundred forty-four thousand, one hundred forty-two".

Divisors: 1 2 30949 61898 327979 655958 10150622071 20301244142