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72441301 = 173741532
BaseRepresentation
bin1000101000101…
…01110111010101
312001022101210011
410110111313111
5122021110201
611104400221
71536512062
oct424256725
9161271704
1072441301
1137989249
1220316071
1312014a9a
149899c69
15655e151
hex4515dd5

72441301 has 24 divisors (see below), whose sum is σ = 82248264. Its totient is φ = 63498240.

The previous prime is 72441289. The next prime is 72441307. The reversal of 72441301 is 10314427.

It can be written as a sum of positive squares in 12 ways, for example, as 361201 + 72080100 = 601^2 + 8490^2 .

It is not a de Polignac number, because 72441301 - 29 = 72440789 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 (72441307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1366791 + ... + 1366843.

It is an arithmetic number, because the mean of its divisors is an integer number (3427011).

Almost surely, 272441301 is an apocalyptic number.

It is an amenable number.

72441301 is a deficient number, since it is larger than the sum of its proper divisors (9806963).

72441301 is a wasteful number, since it uses less digits than its factorization.

72441301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 72441301 is about 8511.2455610210. The cubic root of 72441301 is about 416.8649812939.

Adding to 72441301 its reverse (10314427), we get a palindrome (82755728).

It can be divided in two parts, 724 and 41301, that added together give a square (42025 = 2052).

The spelling of 72441301 in words is "seventy-two million, four hundred forty-one thousand, three hundred one".

Divisors: 1 17 37 41 53 629 697 901 1517 1961 2173 2809 25789 33337 36941 47753 80401 103933 115169 1366817 1766861 1957873 4261253 72441301