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145011040 = 2551947701
BaseRepresentation
bin10001010010010…
…11000101100000
3101002212022202021
420221023011200
5244110323130
622220031224
73410400466
oct1051130540
9332768667
10145011040
1174944a39
1240692514
1324073165
141538a836
15cae637a
hex8a4b160

145011040 has 48 divisors (see below), whose sum is σ = 360627120. Its totient is φ = 54950400.

The previous prime is 145011017. The next prime is 145011047. The reversal of 145011040 is 40110541.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145011047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20811 + ... + 26890.

It is an arithmetic number, because the mean of its divisors is an integer number (7513065).

Almost surely, 2145011040 is an apocalyptic number.

145011040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145011040 is an abundant number, since it is smaller than the sum of its proper divisors (215616080).

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

145011040 is a wasteful number, since it uses less digits than its factorization.

145011040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47735 (or 47727 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 145011040 is about 12042.0529811158. The cubic root of 145011040 is about 525.3721201546.

Adding to 145011040 its reverse (40110541), we get a palindrome (185121581).

The spelling of 145011040 in words is "one hundred forty-five million, eleven thousand, forty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 47701 95402 190804 238505 381608 477010 763216 906319 954020 1526432 1812638 1908040 3625276 3816080 4531595 7250552 7632160 9063190 14501104 18126380 29002208 36252760 72505520 145011040