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1472071987 = 192913719501
BaseRepresentation
bin101011110111110…
…0000100100110011
310210120222000010201
41113233200210303
511003322300422
6402023340031
751323256031
oct12757404463
93716860121
101472071987
11695a45521
12350bb1617
131a5c94419
14dd713551
158937e727
hex57be0933

1472071987 has 16 divisors (see below), whose sum is σ = 1614765600. Its totient is φ = 1336608000.

The previous prime is 1472071969. The next prime is 1472072009. The reversal of 1472071987 is 7891702741.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1472071987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1472071957) 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 15 ways as a sum of consecutive naturals, for example, 65737 + ... + 85237.

It is an arithmetic number, because the mean of its divisors is an integer number (100922850).

Almost surely, 21472071987 is an apocalyptic number.

1472071987 is a deficient number, since it is larger than the sum of its proper divisors (142693613).

1472071987 is a wasteful number, since it uses less digits than its factorization.

1472071987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19686.

The product of its (nonzero) digits is 197568, while the sum is 46.

The square root of 1472071987 is about 38367.5903204775. The cubic root of 1472071987 is about 1137.5653352482.

The spelling of 1472071987 in words is "one billion, four hundred seventy-two million, seventy-one thousand, nine hundred eighty-seven".

Divisors: 1 19 29 137 551 2603 3973 19501 75487 370519 565529 2671637 10745051 50761103 77477473 1472071987