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141869401 = 915715493
BaseRepresentation
bin10000111010011…
…00000101011001
3100212221201020021
420131030011121
5242304310101
622024430441
73341604262
oct1035140531
9325851207
10141869401
1173099643
123b618421
13235131bb
1414bad969
15c6c55a1
hex874c159

141869401 has 4 divisors (see below), whose sum is σ = 141894052. Its totient is φ = 141844752.

The previous prime is 141869381. The next prime is 141869407. The reversal of 141869401 is 104968141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104968141 = 195524639.

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 129960000 = 3451^2 + 11400^2 .

It is a cyclic number.

It is not a de Polignac number, because 141869401 - 215 = 141836633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141869407) 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, 1411 + ... + 16903.

It is an arithmetic number, because the mean of its divisors is an integer number (35473513).

Almost surely, 2141869401 is an apocalyptic number.

It is an amenable number.

141869401 is a deficient number, since it is larger than the sum of its proper divisors (24651).

141869401 is an equidigital number, since it uses as much as digits as its factorization.

141869401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24650.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 141869401 is about 11910.8942149614. The cubic root of 141869401 is about 521.5503546086.

The spelling of 141869401 in words is "one hundred forty-one million, eight hundred sixty-nine thousand, four hundred one".

Divisors: 1 9157 15493 141869401