Search a number
BaseRepresentation
bin10001010100000…
…10011100110100
3101010021211211020
420222002130310
5244140102222
622224541140
73412333566
oct1052023464
9333254736
10145237812
1174a8a355
12407817b0
1324122445
1415409336
15cb3d65c
hex8a82734

145237812 has 24 divisors (see below), whose sum is σ = 339091200. Its totient is φ = 48383616.

The previous prime is 145237777. The next prime is 145237837. The reversal of 145237812 is 218732541.

It is a super-3 number, since 3×1452378123 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28989 + ... + 33627.

It is an arithmetic number, because the mean of its divisors is an integer number (14128800).

Almost surely, 2145237812 is an apocalyptic number.

145237812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145237812 is an abundant number, since it is smaller than the sum of its proper divisors (193853388).

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

145237812 is a wasteful number, since it uses less digits than its factorization.

145237812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7255 (or 7253 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 145237812 is about 12051.4651391439. The cubic root of 145237812 is about 525.6458410055.

The spelling of 145237812 in words is "one hundred forty-five million, two hundred thirty-seven thousand, eight hundred twelve".