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1490031232987 = 11197129336043
BaseRepresentation
bin10101101011101100110…
…010000100011111011011
312021110000211122022012111
4111223230302010133123
5143403040443423422
63100302204253151
7212436235335613
oct25535462043733
95243024568174
101490031232987
11524a11871170
122009405411b7
13aa6810433bb
1452191717a43
1528b5c10aa77
hex15aecc847db

1490031232987 has 8 divisors (see below), whose sum is σ = 1711040650560. Its totient is φ = 1283280487560.

The previous prime is 1490031232981. The next prime is 1490031232993. The reversal of 1490031232987 is 7892321300941.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1490031232981) and next prime (1490031232993).

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 1490031232987 - 227 = 1489897015259 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 1490031232987.

It is not an unprimeable number, because it can be changed into a prime (1490031232981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3564667813 + ... + 3564668230.

It is an arithmetic number, because the mean of its divisors is an integer number (213880081320).

Almost surely, 21490031232987 is an apocalyptic number.

1490031232987 is a deficient number, since it is larger than the sum of its proper divisors (221009417573).

1490031232987 is a wasteful number, since it uses less digits than its factorization.

1490031232987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7129336073.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 1490031232987 in words is "one trillion, four hundred ninety billion, thirty-one million, two hundred thirty-two thousand, nine hundred eighty-seven".

Divisors: 1 11 19 209 7129336043 78422696473 135457384817 1490031232987