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145411040 = 255908819
BaseRepresentation
bin10001010101011…
…00101111100000
3101010121122110002
420222230233200
5244211123130
622232355132
73413654615
oct1052545740
9333548402
10145411040
1175098515
1240845aa8
1324183248
141545250c
15cb74b45
hex8aacbe0

145411040 has 24 divisors (see below), whose sum is σ = 343533960. Its totient is φ = 58164352.

The previous prime is 145411033. The next prime is 145411043. The reversal of 145411040 is 40114541.

It is a super-2 number, since 2×1454110402 = 42288741107763200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145411043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454250 + ... + 454569.

It is an arithmetic number, because the mean of its divisors is an integer number (14313915).

Almost surely, 2145411040 is an apocalyptic number.

145411040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145411040 is an abundant number, since it is smaller than the sum of its proper divisors (198122920).

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

145411040 is an equidigital number, since it uses as much as digits as its factorization.

145411040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908834 (or 908826 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 145411040 is about 12058.6500073599. The cubic root of 145411040 is about 525.8547406917.

Adding to 145411040 its reverse (40114541), we get a palindrome (185525581).

The spelling of 145411040 in words is "one hundred forty-five million, four hundred eleven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 908819 1817638 3635276 4544095 7270552 9088190 14541104 18176380 29082208 36352760 72705520 145411040