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72703741 = 1138317257
BaseRepresentation
bin1000101010101…
…01111011111101
312001210201210011
410111111323331
5122103004431
611114143221
71541654155
oct425257375
9161721704
1072703741
1138048440
1220421b11
13120a7386
149927765
1565b1cb1
hex4555efd

72703741 has 8 divisors (see below), whose sum is σ = 79524864. Its totient is φ = 65917920.

The previous prime is 72703733. The next prime is 72703751. The reversal of 72703741 is 14730727.

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

It is a cyclic number.

It is not a de Polignac number, because 72703741 - 23 = 72703733 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 (72703721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4416 + ... + 12841.

It is an arithmetic number, because the mean of its divisors is an integer number (9940608).

Almost surely, 272703741 is an apocalyptic number.

It is an amenable number.

72703741 is a deficient number, since it is larger than the sum of its proper divisors (6821123).

72703741 is a wasteful number, since it uses less digits than its factorization.

72703741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17651.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 72703741 is about 8526.6488727987. The cubic root of 72703741 is about 417.3677800920.

It can be divided in two parts, 7270 and 3741, that added together give a palindrome (11011).

The spelling of 72703741 in words is "seventy-two million, seven hundred three thousand, seven hundred forty-one".

Divisors: 1 11 383 4213 17257 189827 6609431 72703741