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143938416 = 24323130379
BaseRepresentation
bin10001001010001…
…01001101110000
3101000211211101110
420211011031300
5243322012131
622141033320
73365312346
oct1045051560
9330754343
10143938416
1174282076
1240255840
1323a88b7b
141518b996
15c983646
hex8945370

143938416 has 40 divisors (see below), whose sum is σ = 388010880. Its totient is φ = 45893056.

The previous prime is 143938411. The next prime is 143938423. The reversal of 143938416 is 614839341.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143938411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64086 + ... + 66293.

It is an arithmetic number, because the mean of its divisors is an integer number (9700272).

Almost surely, 2143938416 is an apocalyptic number.

143938416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

143938416 is an abundant number, since it is smaller than the sum of its proper divisors (244072464).

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

143938416 is a wasteful number, since it uses less digits than its factorization.

143938416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130413 (or 130407 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 143938416 is about 11997.4337255932. The cubic root of 143938416 is about 524.0735479384.

The spelling of 143938416 in words is "one hundred forty-three million, nine hundred thirty-eight thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 23 24 46 48 69 92 138 184 276 368 552 1104 130379 260758 391137 521516 782274 1043032 1564548 2086064 2998717 3129096 5997434 6258192 8996151 11994868 17992302 23989736 35984604 47979472 71969208 143938416