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993472487 = 7211167231
BaseRepresentation
bin111011001101110…
…010111111100111
32120020101122001022
4323031302333213
54013312104422
6242325321355
733422243150
oct7315627747
92506348038
10993472487
1146a875647
1223886625b
1312aa93057
1495d2c927
155c342342
hex3b372fe7

993472487 has 8 divisors (see below), whose sum is σ = 1135951872. Its totient is φ = 851131800.

The previous prime is 993472483. The next prime is 993472489. The reversal of 993472487 is 784274399.

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 993472487 - 22 = 993472483 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 (993472483) 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, 18839 + ... + 48392.

It is an arithmetic number, because the mean of its divisors is an integer number (141993984).

Almost surely, 2993472487 is an apocalyptic number.

993472487 is a deficient number, since it is larger than the sum of its proper divisors (142479385).

993472487 is a wasteful number, since it uses less digits than its factorization.

993472487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69349.

The product of its digits is 3048192, while the sum is 53.

The square root of 993472487 is about 31519.3985824603. The cubic root of 993472487 is about 997.8194108204.

The spelling of 993472487 in words is "nine hundred ninety-three million, four hundred seventy-two thousand, four hundred eighty-seven".

Divisors: 1 7 2111 14777 67231 470617 141924641 993472487