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72674033 = 142351071
BaseRepresentation
bin1000101010011…
…10101011110001
312001202020000212
410111032223301
5122101032113
611113353505
71541501435
oct425165361
9161666025
1072674033
1138028093
1220408895
13120969b3
14991a9c5
1565a80a8
hex454eaf1

72674033 has 4 divisors (see below), whose sum is σ = 72726528. Its totient is φ = 72621540.

The previous prime is 72674027. The next prime is 72674047. The reversal of 72674033 is 33047627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33047627 = 47703141.

It is a cyclic number.

It is not a de Polignac number, because 72674033 - 212 = 72669937 is a prime.

It is a super-3 number, since 3×726740333 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72674003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24113 + ... + 26958.

It is an arithmetic number, because the mean of its divisors is an integer number (18181632).

Almost surely, 272674033 is an apocalyptic number.

It is an amenable number.

72674033 is a deficient number, since it is larger than the sum of its proper divisors (52495).

72674033 is a wasteful number, since it uses less digits than its factorization.

72674033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52494.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 72674033 is about 8524.9066270546. The cubic root of 72674033 is about 417.3109244609.

The spelling of 72674033 in words is "seventy-two million, six hundred seventy-four thousand, thirty-three".

Divisors: 1 1423 51071 72674033