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141344021 = 7131981749
BaseRepresentation
bin10000110110010…
…11110100010101
3100211222000112202
420123023310111
5242141002041
622005254245
73334255460
oct1033136425
9324860482
10141344021
117286a945
123b404385
132338b020
1414ab42d7
15c61ea9b
hex86cbd15

141344021 has 16 divisors (see below), whose sum is σ = 183120000. Its totient is φ = 105945408.

The previous prime is 141343997. The next prime is 141344081. The reversal of 141344021 is 120443141.

141344021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 141344021 - 218 = 141081877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 141343984 and 141344002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141344081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39146 + ... + 42603.

It is an arithmetic number, because the mean of its divisors is an integer number (11445000).

Almost surely, 2141344021 is an apocalyptic number.

It is an amenable number.

141344021 is a deficient number, since it is larger than the sum of its proper divisors (41775979).

141344021 is a wasteful number, since it uses less digits than its factorization.

141344021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81788.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 141344021 is about 11888.8191591932. The cubic root of 141344021 is about 520.9057451591.

Adding to 141344021 its reverse (120443141), we get a palindrome (261787162).

The spelling of 141344021 in words is "one hundred forty-one million, three hundred forty-four thousand, twenty-one".

Divisors: 1 7 13 19 91 133 247 1729 81749 572243 1062737 1553231 7439159 10872617 20192003 141344021