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141555438 = 2342921039
BaseRepresentation
bin10000110111111…
…11011011101110
3100212100202120000
420123333123232
5242214233223
622014005130
73336126033
oct1033773356
9325322500
10141555438
11729a4772
123b4a67a6
132343331b
1414b2b38a
15c662543
hex86ff6ee

141555438 has 60 divisors (see below), whose sum is σ = 328819920. Its totient is φ = 45514224.

The previous prime is 141555433. The next prime is 141555457. The reversal of 141555438 is 834555141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141555433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 135723 + ... + 136761.

It is an arithmetic number, because the mean of its divisors is an integer number (5480332).

Almost surely, 2141555438 is an apocalyptic number.

141555438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 141555438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164409960).

141555438 is an abundant number, since it is smaller than the sum of its proper divisors (187264482).

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

141555438 is a wasteful number, since it uses less digits than its factorization.

141555438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1073 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 141555438 is about 11897.7072581233. The cubic root of 141555438 is about 521.1653327623.

The spelling of 141555438 in words is "one hundred forty-one million, five hundred fifty-five thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 29 54 58 81 87 162 174 261 522 783 841 1039 1566 1682 2078 2349 2523 3117 4698 5046 6234 7569 9351 15138 18702 22707 28053 30131 45414 56106 60262 68121 84159 90393 136242 168318 180786 271179 542358 813537 873799 1627074 1747598 2440611 2621397 4881222 5242794 7864191 15728382 23592573 47185146 70777719 141555438