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145102311 = 3216122479
BaseRepresentation
bin10001010011000…
…01010111100111
3101010000221221200
420221201113213
5244121233221
622222013543
73411230544
oct1051412747
9333027850
10145102311
11749a7572
12407172b3
13240a5873
14153b1bcb
15cb13426
hex8a615e7

145102311 has 6 divisors (see below), whose sum is σ = 209592240. Its totient is φ = 96734868.

The previous prime is 145102303. The next prime is 145102313. The reversal of 145102311 is 113201541.

145102311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145102311 - 23 = 145102303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145102313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8061231 + ... + 8061248.

It is an arithmetic number, because the mean of its divisors is an integer number (34932040).

Almost surely, 2145102311 is an apocalyptic number.

145102311 is a deficient number, since it is larger than the sum of its proper divisors (64489929).

145102311 is a wasteful number, since it uses less digits than its factorization.

145102311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16122485 (or 16122482 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 145102311 is about 12045.8420627202. The cubic root of 145102311 is about 525.4823213779.

Adding to 145102311 its reverse (113201541), we get a palindrome (258303852).

The spelling of 145102311 in words is "one hundred forty-five million, one hundred two thousand, three hundred eleven".

Divisors: 1 3 9 16122479 48367437 145102311