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72965500 = 2253145931
BaseRepresentation
bin1000101100101…
…01110101111100
312002022000211221
410112111311330
5122134344000
611123523124
71544124256
oct426256574
9162260757
1072965500
1138207073
12205294a4
131216956a
149994cd6
15661461a
hex4595d7c

72965500 has 24 divisors (see below), whose sum is σ = 159357744. Its totient is φ = 29186000.

The previous prime is 72965489. The next prime is 72965533. The reversal of 72965500 is 556927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72466 + ... + 73465.

It is an arithmetic number, because the mean of its divisors is an integer number (6639906).

Almost surely, 272965500 is an apocalyptic number.

It is an amenable number.

72965500 is an abundant number, since it is smaller than the sum of its proper divisors (86392244).

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

72965500 is a wasteful number, since it uses less digits than its factorization.

72965500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145950 (or 145938 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 72965500 is about 8541.9845469305. The cubic root of 72965500 is about 417.8680703584.

The spelling of 72965500 in words is "seventy-two million, nine hundred sixty-five thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 145931 291862 583724 729655 1459310 2918620 3648275 7296550 14593100 18241375 36482750 72965500