Search a number
-
+
1381088429 = 7238578189
BaseRepresentation
bin101001001010001…
…1011110010101101
310120020202120011022
41102110123302231
510312024312204
6345013303525
746140025610
oct12224336255
93506676138
101381088429
116496521a6
12326634ba5
131901898b6
14d15cc177
15813ab5be
hex5251bcad

1381088429 has 8 divisors (see below), whose sum is σ = 1647012480. Its totient is φ = 1132320816.

The previous prime is 1381088419. The next prime is 1381088453. The reversal of 1381088429 is 9248801831.

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 1381088429 - 24 = 1381088413 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 1381088429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381088419) 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, 4288934 + ... + 4289255.

It is an arithmetic number, because the mean of its divisors is an integer number (205876560).

Almost surely, 21381088429 is an apocalyptic number.

It is an amenable number.

1381088429 is a deficient number, since it is larger than the sum of its proper divisors (265924051).

1381088429 is an equidigital number, since it uses as much as digits as its factorization.

1381088429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578219.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 1381088429 is about 37162.9981164061. The cubic root of 1381088429 is about 1113.6289068952.

The spelling of 1381088429 in words is "one billion, three hundred eighty-one million, eighty-eight thousand, four hundred twenty-nine".

Divisors: 1 7 23 161 8578189 60047323 197298347 1381088429