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1145053380 = 223519084223
BaseRepresentation
bin100010001000000…
…0010000011000100
32221210121201221110
41010100002003010
54321113202010
6305342245020
740242536022
oct10420020304
92853551843
101145053380
11538397609
1227b586770
131532c66a3
14ac109712
156a7d5120
hex444020c4

1145053380 has 24 divisors (see below), whose sum is σ = 3206149632. Its totient is φ = 305347552.

The previous prime is 1145053379. The next prime is 1145053391. The reversal of 1145053380 is 833505411.

It is a super-2 number, since 2×11450533802 = 2622294486098848800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9542052 + ... + 9542171.

It is an arithmetic number, because the mean of its divisors is an integer number (133589568).

Almost surely, 21145053380 is an apocalyptic number.

1145053380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145053380 is an abundant number, since it is smaller than the sum of its proper divisors (2061096252).

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

1145053380 is a wasteful number, since it uses less digits than its factorization.

1145053380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19084235 (or 19084233 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1145053380 is about 33838.6373839137. The cubic root of 1145053380 is about 1046.1852138613.

Adding to 1145053380 its reverse (833505411), we get a palindrome (1978558791).

The spelling of 1145053380 in words is "one billion, one hundred forty-five million, fifty-three thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 19084223 38168446 57252669 76336892 95421115 114505338 190842230 229010676 286263345 381684460 572526690 1145053380