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1230342141 = 37892632503
BaseRepresentation
bin100100101010101…
…1000011111111101
310011202002212010110
41021111120133331
510004431422031
6322030300233
742326510220
oct11125303775
93152085113
101230342141
11581550296
122a4057679
13167b89102
14b958b5b7
1573030c46
hex495587fd

1230342141 has 32 divisors (see below), whose sum is σ = 1903841280. Its totient is φ = 692233344.

The previous prime is 1230342133. The next prime is 1230342149. The reversal of 1230342141 is 1412430321.

It is an interprime number because it is at equal distance from previous prime (1230342133) and next prime (1230342149).

It is not a de Polignac number, because 1230342141 - 23 = 1230342133 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230342149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490296 + ... + 492798.

It is an arithmetic number, because the mean of its divisors is an integer number (59495040).

Almost surely, 21230342141 is an apocalyptic number.

It is an amenable number.

1230342141 is a deficient number, since it is larger than the sum of its proper divisors (673499139).

1230342141 is a wasteful number, since it uses less digits than its factorization.

1230342141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1230342141 is about 35076.2332783895. The cubic root of 1230342141 is about 1071.5406057348.

Adding to 1230342141 its reverse (1412430321), we get a palindrome (2642772462).

The spelling of 1230342141 in words is "one billion, two hundred thirty million, three hundred forty-two thousand, one hundred forty-one".

Divisors: 1 3 7 21 89 263 267 623 789 1841 1869 2503 5523 7509 17521 23407 52563 70221 163849 222767 491547 658289 668301 1559369 1974867 4608023 4678107 13824069 58587721 175763163 410114047 1230342141