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1230224142 = 237171723003
BaseRepresentation
bin100100101010011…
…1011101100001110
310011201212212021010
41021110323230032
510004414133032
6322023550050
742325506210
oct11124735416
93151785233
101230224142
1158147a674
122a3bbb326
13167b474a4
14b955a5b0
157300accc
hex4953bb0e

1230224142 has 32 divisors (see below), whose sum is σ = 2977350912. Its totient is φ = 330816384.

The previous prime is 1230224123. The next prime is 1230224143. The reversal of 1230224142 is 2414220321.

1230224142 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230224143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860788 + ... + 862215.

It is an arithmetic number, because the mean of its divisors is an integer number (93042216).

Almost surely, 21230224142 is an apocalyptic number.

1230224142 is an abundant number, since it is smaller than the sum of its proper divisors (1747126770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230224142 is a wasteful number, since it uses less digits than its factorization.

1230224142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723032.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1230224142 is about 35074.5512016904. The cubic root of 1230224142 is about 1071.5063483907.

Adding to 1230224142 its reverse (2414220321), we get a palindrome (3644444463).

The spelling of 1230224142 in words is "one billion, two hundred thirty million, two hundred twenty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 14 17 21 34 42 51 102 119 238 357 714 1723003 3446006 5169009 10338018 12061021 24122042 29291051 36183063 58582102 72366126 87873153 175746306 205037357 410074714 615112071 1230224142