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142214044 = 227171092741
BaseRepresentation
bin10000111101000…
…00001110011100
3100220121012222211
420132200032130
5242401322134
622040050204
73344541130
oct1036401634
9326535884
10142214044
1173304575
123b763964
132360402b
1414c5d3c0
15c742764
hex87a039c

142214044 has 48 divisors (see below), whose sum is σ = 304032960. Its totient is φ = 56816640.

The previous prime is 142214041. The next prime is 142214063. The reversal of 142214044 is 440412241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142214041) 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, 50514 + ... + 53254.

It is an arithmetic number, because the mean of its divisors is an integer number (6334020).

Almost surely, 2142214044 is an apocalyptic number.

142214044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142214044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152016480).

142214044 is an abundant number, since it is smaller than the sum of its proper divisors (161818916).

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

142214044 is a wasteful number, since it uses less digits than its factorization.

142214044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 142214044 is about 11925.3529926791. The cubic root of 142214044 is about 521.9723467586.

Adding to 142214044 its reverse (440412241), we get a palindrome (582626285).

The spelling of 142214044 in words is "one hundred forty-two million, two hundred fourteen thousand, forty-four".

Divisors: 1 2 4 7 14 17 28 34 68 109 119 218 238 436 476 763 1526 1853 2741 3052 3706 5482 7412 10964 12971 19187 25942 38374 46597 51884 76748 93194 186388 298769 326179 597538 652358 1195076 1304716 2091383 4182766 5079073 8365532 10158146 20316292 35553511 71107022 142214044