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72750601 = 7111949727
BaseRepresentation
bin1000101011000…
…01011000001001
312001220010001201
410111201120021
5122111004401
611115144201
71542240610
oct425413011
9161803051
1072750601
113807a670
1220445061
13120c27c1
14993a877
1565c0b01
hex4561609

72750601 has 16 divisors (see below), whose sum is σ = 95477760. Its totient is φ = 53704080.

The previous prime is 72750581. The next prime is 72750611. The reversal of 72750601 is 10605727.

It is a cyclic number.

It is not a de Polignac number, because 72750601 - 25 = 72750569 is a prime.

It is a super-3 number, since 3×727506013 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 72750601.

It is not an unprimeable number, because it can be changed into a prime (72750611) 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, 23401 + ... + 26326.

It is an arithmetic number, because the mean of its divisors is an integer number (5967360).

Almost surely, 272750601 is an apocalyptic number.

It is an amenable number.

72750601 is a deficient number, since it is larger than the sum of its proper divisors (22727159).

72750601 is a wasteful number, since it uses less digits than its factorization.

72750601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49764.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 72750601 is about 8529.3962857872. The cubic root of 72750601 is about 417.4574300124.

The spelling of 72750601 in words is "seventy-two million, seven hundred fifty thousand, six hundred one".

Divisors: 1 7 11 19 77 133 209 1463 49727 348089 546997 944813 3828979 6613691 10392943 72750601