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142066430 = 25114727479
BaseRepresentation
bin10000111011111…
…00001011111110
3100220022201111122
420131330023332
5242332111210
622032550542
73343354562
oct1035741376
9326281448
10142066430
1173213680
123b6b2452
1323581a9c
1414c216a2
15c713b55
hex877c2fe

142066430 has 32 divisors (see below), whose sum is σ = 284912640. Its totient is φ = 50559520.

The previous prime is 142066427. The next prime is 142066471. The reversal of 142066430 is 34660241.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142066430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8570 + ... + 18909.

It is an arithmetic number, because the mean of its divisors is an integer number (8903520).

Almost surely, 2142066430 is an apocalyptic number.

142066430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142066430 is an abundant number, since it is smaller than the sum of its proper divisors (142846210).

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

142066430 is a wasteful number, since it uses less digits than its factorization.

142066430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27544.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 142066430 is about 11919.1623027795. The cubic root of 142066430 is about 521.7916869168.

The spelling of 142066430 in words is "one hundred forty-two million, sixty-six thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 47 55 94 110 235 470 517 1034 2585 5170 27479 54958 137395 274790 302269 604538 1291513 1511345 2583026 3022690 6457565 12915130 14206643 28413286 71033215 142066430