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1431923087 = 71910766339
BaseRepresentation
bin101010101011001…
…0110100110001111
310200210102020012102
41111112112212033
510413033014322
6354031025315
750325100610
oct12526264617
93623366172
101431923087
11675313011
1233b66b23b
1319a877b8a
14d8261c07
1585a9d792
hex5559698f

1431923087 has 8 divisors (see below), whose sum is σ = 1722614400. Its totient is φ = 1162764504.

The previous prime is 1431923027. The next prime is 1431923093. The reversal of 1431923087 is 7803291341.

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 1431923087 - 28 = 1431922831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431923087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431923027) 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 7 ways as a sum of consecutive naturals, for example, 5383037 + ... + 5383302.

It is an arithmetic number, because the mean of its divisors is an integer number (215326800).

Almost surely, 21431923087 is an apocalyptic number.

1431923087 is a deficient number, since it is larger than the sum of its proper divisors (290691313).

1431923087 is a wasteful number, since it uses less digits than its factorization.

1431923087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10766365.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1431923087 is about 37840.7595986127. The cubic root of 1431923087 is about 1127.1279787649.

The spelling of 1431923087 in words is "one billion, four hundred thirty-one million, nine hundred twenty-three thousand, eighty-seven".

Divisors: 1 7 19 133 10766339 75364373 204560441 1431923087