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72825401 = 119536947
BaseRepresentation
bin1000101011100…
…11101000111001
312002000220200002
410111303220321
5122120403101
611120522345
71543001645
oct425635071
9162026602
1072825401
1138120890
12204803b5
131211a86c
149959c25
1565d7d6b
hex4573a39

72825401 has 8 divisors (see below), whose sum is σ = 79540704. Its totient is φ = 66125920.

The previous prime is 72825373. The next prime is 72825413. The reversal of 72825401 is 10452827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-72825401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72825421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7010 + ... + 13956.

It is an arithmetic number, because the mean of its divisors is an integer number (9942588).

Almost surely, 272825401 is an apocalyptic number.

It is an amenable number.

72825401 is a deficient number, since it is larger than the sum of its proper divisors (6715303).

72825401 is a wasteful number, since it uses less digits than its factorization.

72825401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 72825401 is about 8533.7799948206. The cubic root of 72825401 is about 417.6004534359.

The spelling of 72825401 in words is "seventy-two million, eight hundred twenty-five thousand, four hundred one".

Divisors: 1 11 953 6947 10483 76417 6620491 72825401