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73121094 = 23223239739
BaseRepresentation
bin1000101101110…
…11110101000110
312002120221021200
410112323311012
5122204333334
611131123330
71545343014
oct426736506
9162527250
1073121094
1138302a62
12205a3546
13121c2327
1499d58b4
156645799
hex45bbd46

73121094 has 48 divisors (see below), whose sum is σ = 166233600. Its totient is φ = 23185008.

The previous prime is 73121047. The next prime is 73121099. The reversal of 73121094 is 49012137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73121099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98577 + ... + 99315.

It is an arithmetic number, because the mean of its divisors is an integer number (3463200).

Almost surely, 273121094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73121094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83116800).

73121094 is an abundant number, since it is smaller than the sum of its proper divisors (93112506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73121094 is a wasteful number, since it uses less digits than its factorization.

73121094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 73121094 is about 8551.0872992854. The cubic root of 73121094 is about 418.1648846239.

The spelling of 73121094 in words is "seventy-three million, one hundred twenty-one thousand, ninety-four".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 239 414 478 717 739 1434 1478 2151 2217 4302 4434 5497 6651 10994 13302 16491 16997 32982 33994 49473 50991 98946 101982 152973 176621 305946 353242 529863 1059726 1589589 3179178 4062283 8124566 12186849 24373698 36560547 73121094