Search a number
-
+
1409242380 = 22357131991297
BaseRepresentation
bin101001111111111…
…0101010100001100
310122012201221010020
41103333311110030
510341231224010
6351500542140
746631235240
oct12377652414
93565657106
101409242380
11663531727
12333b51950
13195c66540
14d523a420
1583abd470
hex53ff550c

1409242380 has 192 divisors, whose sum is σ = 4884633600. Its totient is φ = 295612416.

The previous prime is 1409242379. The next prime is 1409242391. The reversal of 1409242380 is 832429041.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1085892 + ... + 1087188.

It is an arithmetic number, because the mean of its divisors is an integer number (25440800).

Almost surely, 21409242380 is an apocalyptic number.

1409242380 is a gapful number since it is divisible by the number (10) 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 1409242380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2442316800).

1409242380 is an abundant number, since it is smaller than the sum of its proper divisors (3475391220).

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

1409242380 is a wasteful number, since it uses less digits than its factorization.

1409242380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1409242380 is about 37539.8771974550. The cubic root of 1409242380 is about 1121.1452942149.

The spelling of 1409242380 in words is "one billion, four hundred nine million, two hundred forty-two thousand, three hundred eighty".