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72934933 = 79923227
BaseRepresentation
bin1000101100011…
…10011000010101
312002020110220211
410112032120111
5122132404213
611123125421
71543636201
oct426163025
9162213824
1072934933
1138196105
1220513871
1312158686
149987b01
15660a53d
hex458e615

72934933 has 4 divisors (see below), whose sum is σ = 73858240. Its totient is φ = 72011628.

The previous prime is 72934921. The next prime is 72934969. The reversal of 72934933 is 33943927.

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: 33943927 = 186718181.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-72934933 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 (72934973) 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, 461535 + ... + 461692.

It is an arithmetic number, because the mean of its divisors is an integer number (18464560).

Almost surely, 272934933 is an apocalyptic number.

It is an amenable number.

72934933 is a deficient number, since it is larger than the sum of its proper divisors (923307).

72934933 is an equidigital number, since it uses as much as digits as its factorization.

72934933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923306.

The product of its digits is 122472, while the sum is 40.

The square root of 72934933 is about 8540.1951382858. The cubic root of 72934933 is about 417.8097105520.

The spelling of 72934933 in words is "seventy-two million, nine hundred thirty-four thousand, nine hundred thirty-three".

Divisors: 1 79 923227 72934933