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76625645 = 531494359
BaseRepresentation
bin1001001000100…
…11011011101101
312100011222121212
410210103123231
5124104010040
611334204205
71620210245
oct444233355
9170158555
1076625645
113a286a88
12217b3665
1312b4b525
14a268b25
156ad8d65
hex49136ed

76625645 has 8 divisors (see below), whose sum is σ = 94917120. Its totient is φ = 59322960.

The previous prime is 76625641. The next prime is 76625663. The reversal of 76625645 is 54652667.

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

It is not a de Polignac number, because 76625645 - 22 = 76625641 is a prime.

It is a super-3 number, since 3×766256453 (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76625641) 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, 247025 + ... + 247334.

It is an arithmetic number, because the mean of its divisors is an integer number (11864640).

Almost surely, 276625645 is an apocalyptic number.

It is an amenable number.

76625645 is a deficient number, since it is larger than the sum of its proper divisors (18291475).

76625645 is a wasteful number, since it uses less digits than its factorization.

76625645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494395.

The product of its digits is 302400, while the sum is 41.

The square root of 76625645 is about 8753.6075420366. The cubic root of 76625645 is about 424.7415175649.

The spelling of 76625645 in words is "seventy-six million, six hundred twenty-five thousand, six hundred forty-five".

Divisors: 1 5 31 155 494359 2471795 15325129 76625645