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72675023 = 79919937
BaseRepresentation
bin1000101010011…
…10111011001111
312001202021101112
410111032323033
5122101100043
611113402235
71541504351
oct425167317
9161667345
1072675023
1138028903
122040937b
1312097295
14991b0d1
1565a8518
hex454eecf

72675023 has 4 divisors (see below), whose sum is σ = 73595040. Its totient is φ = 71755008.

The previous prime is 72675013. The next prime is 72675037. The reversal of 72675023 is 32057627.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72675023 - 216 = 72609487 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 (72675013) 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, 459890 + ... + 460047.

It is an arithmetic number, because the mean of its divisors is an integer number (18398760).

Almost surely, 272675023 is an apocalyptic number.

72675023 is a deficient number, since it is larger than the sum of its proper divisors (920017).

72675023 is an equidigital number, since it uses as much as digits as its factorization.

72675023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920016.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 72675023 is about 8524.9646920090. The cubic root of 72675023 is about 417.3128193878.

The spelling of 72675023 in words is "seventy-two million, six hundred seventy-five thousand, twenty-three".

Divisors: 1 79 919937 72675023