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145001411 = 1311106881
BaseRepresentation
bin10001010010010…
…00101111000011
3101002211211112122
420221020233003
5244110021121
622215514455
73410330432
oct1051105703
9332754478
10145001411
1174938785
1240688a2b
132406b969
1415387119
15cae35ab
hex8a48bc3

145001411 has 4 divisors (see below), whose sum is σ = 146108424. Its totient is φ = 143894400.

The previous prime is 145001401. The next prime is 145001413. The reversal of 145001411 is 114100541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114100541 = 307371663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145001411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145001411.

It is not an unprimeable number, because it can be changed into a prime (145001413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553310 + ... + 553571.

It is an arithmetic number, because the mean of its divisors is an integer number (36527106).

Almost surely, 2145001411 is an apocalyptic number.

145001411 is a deficient number, since it is larger than the sum of its proper divisors (1107013).

145001411 is a wasteful number, since it uses less digits than its factorization.

145001411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107012.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 145001411 is about 12041.6531672358. The cubic root of 145001411 is about 525.3604913386.

Adding to 145001411 its reverse (114100541), we get a palindrome (259101952).

The spelling of 145001411 in words is "one hundred forty-five million, one thousand, four hundred eleven".

Divisors: 1 131 1106881 145001411