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141989939 = 7137919751
BaseRepresentation
bin10000111011010…
…01100000110011
3100220011211120122
420131221200303
5242322134224
622031200455
73342615560
oct1035514063
9326154518
10141989939
1173171163
123b67612b
1323556020
1414c01867
15c6eb15e
hex8769833

141989939 has 16 divisors (see below), whose sum is σ = 176977920. Its totient is φ = 110916000.

The previous prime is 141989909. The next prime is 141989993. The reversal of 141989939 is 939989141.

It is not a de Polignac number, because 141989939 - 216 = 141924403 is a prime.

It is a super-2 number, since 2×1419899392 = 40322285554447442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (141989909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2687 + ... + 17064.

It is an arithmetic number, because the mean of its divisors is an integer number (11061120).

Almost surely, 2141989939 is an apocalyptic number.

141989939 is a deficient number, since it is larger than the sum of its proper divisors (34987981).

141989939 is a wasteful number, since it uses less digits than its factorization.

141989939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19850.

The product of its digits is 629856, while the sum is 53.

The square root of 141989939 is about 11915.9531301529. The cubic root of 141989939 is about 521.6980229099.

The spelling of 141989939 in words is "one hundred forty-one million, nine hundred eighty-nine thousand, nine hundred thirty-nine".

Divisors: 1 7 13 79 91 553 1027 7189 19751 138257 256763 1560329 1797341 10922303 20284277 141989939