| Base | Representation |
|---|---|
| bin | 10001010101011… |
| … | …00001000111100 |
| 3 | 101010121112001200 |
| 4 | 20222230020330 |
| 5 | 244211033242 |
| 6 | 22232335500 |
| 7 | 3413644461 |
| oct | 1052541074 |
| 9 | 333545050 |
| 10 | 145408572 |
| 11 | 75096681 |
| 12 | 40844590 |
| 13 | 2418209a |
| 14 | 15451668 |
| 15 | cb7404c |
| hex | 8aac23c |
145408572 has 18 divisors (see below), whose sum is σ = 367560648. Its totient is φ = 48469512.
The previous prime is 145408561. The next prime is 145408583. The reversal of 145408572 is 275804541.
145408572 is a `hidden beast` number, since 1 + 45 + 40 + 8 + 572 = 666.
It is an interprime number because it is at equal distance from previous prime (145408561) and next prime (145408583).
It is a tau number, because it is divible by the number of its divisors (18).
It is a super-2 number, since 2×1454085722 = 42287305622158368, which contains 22 as substring.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4039127 = 145408572 / (1 + 4 + 5 + 4 + 0 + 8 + 5 + 7 + 2).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2019528 + ... + 2019599.
It is an arithmetic number, because the mean of its divisors is an integer number (20420036).
Almost surely, 2145408572 is an apocalyptic number.
145408572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
145408572 is an abundant number, since it is smaller than the sum of its proper divisors (222152076).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145408572 is a wasteful number, since it uses less digits than its factorization.
145408572 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4039137 (or 4039132 counting only the distinct ones).
The product of its (nonzero) digits is 44800, while the sum is 36.
The square root of 145408572 is about 12058.5476737458. The cubic root of 145408572 is about 525.8517656383.
The spelling of 145408572 in words is "one hundred forty-five million, four hundred eight thousand, five hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •