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72681034 = 2107339631
BaseRepresentation
bin1000101010100…
…00011001001010
312001202120122011
410111100121022
5122101243114
611113450134
71541531026
oct425203112
9161676564
1072681034
1138032378
122041094a
1312099c3a
14991d386
1565aa1c4
hex455064a

72681034 has 8 divisors (see below), whose sum is σ = 110040768. Its totient is φ = 36000780.

The previous prime is 72681031. The next prime is 72681041. The reversal of 72681034 is 43018627.

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

It is a junction number, because it is equal to n+sod(n) for n = 72680987 and 72681005.

It is not an unprimeable number, because it can be changed into a prime (72681031) 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, 169602 + ... + 170029.

It is an arithmetic number, because the mean of its divisors is an integer number (13755096).

Almost surely, 272681034 is an apocalyptic number.

72681034 is a deficient number, since it is larger than the sum of its proper divisors (37359734).

72681034 is a wasteful number, since it uses less digits than its factorization.

72681034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339740.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 72681034 is about 8525.3172374991. The cubic root of 72681034 is about 417.3243244785.

The spelling of 72681034 in words is "seventy-two million, six hundred eighty-one thousand, thirty-four".

Divisors: 1 2 107 214 339631 679262 36340517 72681034