Search a number
-
+
1141894908 = 223571121973
BaseRepresentation
bin100010000001111…
…1110111011111100
32221120200021100000
41010003332323330
54314311114113
6305150434300
740203642450
oct10403767374
92846607300
101141894908
1153662a600
1227a502990
1315275bb7b
14ab926660
156a3ae373
hex440feefc

1141894908 has 432 divisors, whose sum is σ = 4012386560. Its totient is φ = 277136640.

The previous prime is 1141894907. The next prime is 1141894933. The reversal of 1141894908 is 8094981411.

It is a super-3 number, since 3×11418949083 (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141894903) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15642360 + ... + 15642432.

Almost surely, 21141894908 is an apocalyptic number.

1141894908 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 1141894908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2006193280).

1141894908 is an abundant number, since it is smaller than the sum of its proper divisors (2870491652).

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

1141894908 is a wasteful number, since it uses less digits than its factorization.

1141894908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 1141894908 is about 33791.9355468135. The cubic root of 1141894908 is about 1045.2224088014. Note that the first 3 decimals are identical.

The spelling of 1141894908 in words is "one billion, one hundred forty-one million, eight hundred ninety-four thousand, nine hundred eight".