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72468143 = 11113173337
BaseRepresentation
bin1000101000111…
…00011010101111
312001100202121022
410110130122233
5122022440033
611105124355
71536653246
oct424343257
9161322538
1072468143
11379a7430
12203296bb
1312024077
1498a595d
156567098
hex451c6af

72468143 has 16 divisors (see below), whose sum is σ = 80454816. Its totient is φ = 64727040.

The previous prime is 72468139. The next prime is 72468167. The reversal of 72468143 is 34186427.

It is a cyclic number.

It is not a de Polignac number, because 72468143 - 22 = 72468139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72468113) 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, 214871 + ... + 215207.

It is an arithmetic number, because the mean of its divisors is an integer number (5028426).

Almost surely, 272468143 is an apocalyptic number.

72468143 is a deficient number, since it is larger than the sum of its proper divisors (7986673).

72468143 is a wasteful number, since it uses less digits than its factorization.

72468143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its digits is 32256, while the sum is 35.

The square root of 72468143 is about 8512.8222699643. The cubic root of 72468143 is about 416.9164625527.

The spelling of 72468143 in words is "seventy-two million, four hundred sixty-eight thousand, one hundred forty-three".

Divisors: 1 11 113 173 337 1243 1903 3707 19549 38081 58301 215039 418891 641311 6588013 72468143