Search a number
-
+
1008491148 = 223472139457
BaseRepresentation
bin111100000111000…
…101101010001100
32121021122122210000
4330013011222030
54031133204043
6244023244300
733664014300
oct7407055214
92537578700
101008491148
114782a3365
122418a9690
13130c21032
1497d1bd00
155d80c2d3
hex3c1c5a8c

1008491148 has 180 divisors, whose sum is σ = 3095649480. Its totient is φ = 285441408.

The previous prime is 1008491147. The next prime is 1008491149. The reversal of 1008491148 is 8411948001.

It is an interprime number because it is at equal distance from previous prime (1008491147) and next prime (1008491149).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1008491147) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2206536 + ... + 2206992.

Almost surely, 21008491148 is an apocalyptic number.

1008491148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1008491148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547824740).

1008491148 is an abundant number, since it is smaller than the sum of its proper divisors (2087158332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1008491148 is a wasteful number, since it uses less digits than its factorization.

1008491148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1008491148 is about 31756.7496447606. The cubic root of 1008491148 is about 1002.8224091787.

The spelling of 1008491148 in words is "one billion, eight million, four hundred ninety-one thousand, one hundred forty-eight".