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142541431430 = 254313117314627
BaseRepresentation
bin1000010011000000100…
…0011010001010000110
3111121220221211222021012
42010300020122022012
54313411101301210
6145252125322222
713204211114246
oct2046010321206
9447827758235
10142541431430
11554a6a161a2
1223760a06372
1310598269688
146c82d85b26
153a93dd3305
hex213021a286

142541431430 has 64 divisors (see below), whose sum is σ = 266092915968. Its totient is φ = 54942276480.

The previous prime is 142541431429. The next prime is 142541431433. The reversal of 142541431430 is 34134145241.

It is a super-2 number, since 2×1425414314302 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142541431433) 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, 9737777 + ... + 9752403.

It is an arithmetic number, because the mean of its divisors is an integer number (4157701812).

Almost surely, 2142541431430 is an apocalyptic number.

142541431430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142541431430 is a deficient number, since it is larger than the sum of its proper divisors (123551484538).

142541431430 is a wasteful number, since it uses less digits than its factorization.

142541431430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14981.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 142541431430 its reverse (34134145241), we get a palindrome (176675576671).

The spelling of 142541431430 in words is "one hundred forty-two billion, five hundred forty-one million, four hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 43 86 131 173 215 262 346 430 655 865 1310 1730 5633 7439 11266 14627 14878 22663 28165 29254 37195 45326 56330 73135 74390 113315 146270 226630 628961 974509 1257922 1916137 1949018 2530471 3144805 3832274 4872545 5060942 6289610 9580685 9745090 12652355 19161370 25304710 82393891 108810253 164787782 217620506 331491701 411969455 544051265 662983402 823938910 1088102530 1657458505 3314917010 14254143143 28508286286 71270715715 142541431430